http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/BitsStreamGeneratorTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/BitsStreamGeneratorTest.java 
b/src/test/java/org/apache/commons/math4/random/BitsStreamGeneratorTest.java
index da4bc94..cc47304 100644
--- a/src/test/java/org/apache/commons/math4/random/BitsStreamGeneratorTest.java
+++ b/src/test/java/org/apache/commons/math4/random/BitsStreamGeneratorTest.java
@@ -14,10 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
 import java.util.Random;
 
+import org.apache.commons.math4.random.BitsStreamGenerator;
+import org.apache.commons.math4.random.RandomGenerator;
+
 /**
  * Test cases for the BitStreamGenerator class
  *

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/CorrelatedRandomVectorGeneratorTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/CorrelatedRandomVectorGeneratorTest.java
 
b/src/test/java/org/apache/commons/math4/random/CorrelatedRandomVectorGeneratorTest.java
index 0496e98..4321a5a 100644
--- 
a/src/test/java/org/apache/commons/math4/random/CorrelatedRandomVectorGeneratorTest.java
+++ 
b/src/test/java/org/apache/commons/math4/random/CorrelatedRandomVectorGeneratorTest.java
@@ -15,19 +15,23 @@
 //specific language governing permissions and limitations
 //under the License.
 
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
 import java.util.Arrays;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.linear.Array2DRowRealMatrix;
-import org.apache.commons.math3.linear.MatrixUtils;
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.stat.correlation.StorelessCovariance;
-import org.apache.commons.math3.stat.descriptive.moment.VectorialCovariance;
-import org.apache.commons.math3.stat.descriptive.moment.VectorialMean;
-import org.apache.commons.math3.util.FastMath;
-
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.random.CorrelatedRandomVectorGenerator;
+import org.apache.commons.math4.random.GaussianRandomGenerator;
+import org.apache.commons.math4.random.JDKRandomGenerator;
+import org.apache.commons.math4.random.NormalizedRandomGenerator;
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.stat.correlation.StorelessCovariance;
+import org.apache.commons.math4.stat.descriptive.moment.VectorialCovariance;
+import org.apache.commons.math4.stat.descriptive.moment.VectorialMean;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/EmpiricalDistributionTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/EmpiricalDistributionTest.java 
b/src/test/java/org/apache/commons/math4/random/EmpiricalDistributionTest.java
index 42e9a7f..b4ed00f 100644
--- 
a/src/test/java/org/apache/commons/math4/random/EmpiricalDistributionTest.java
+++ 
b/src/test/java/org/apache/commons/math4/random/EmpiricalDistributionTest.java
@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
 import java.io.BufferedReader;
 import java.io.File;
@@ -24,18 +24,20 @@ import java.net.URL;
 import java.util.ArrayList;
 import java.util.Arrays;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.analysis.UnivariateFunction;
-import 
org.apache.commons.math3.analysis.integration.BaseAbstractUnivariateIntegrator;
-import 
org.apache.commons.math3.analysis.integration.IterativeLegendreGaussIntegrator;
-import org.apache.commons.math3.distribution.ConstantRealDistribution;
-import org.apache.commons.math3.distribution.NormalDistribution;
-import org.apache.commons.math3.distribution.RealDistribution;
-import org.apache.commons.math3.distribution.RealDistributionAbstractTest;
-import org.apache.commons.math3.distribution.UniformRealDistribution;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.stat.descriptive.SummaryStatistics;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.analysis.UnivariateFunction;
+import 
org.apache.commons.math4.analysis.integration.BaseAbstractUnivariateIntegrator;
+import 
org.apache.commons.math4.analysis.integration.IterativeLegendreGaussIntegrator;
+import org.apache.commons.math4.distribution.ConstantRealDistribution;
+import org.apache.commons.math4.distribution.NormalDistribution;
+import org.apache.commons.math4.distribution.RealDistribution;
+import org.apache.commons.math4.distribution.RealDistributionAbstractTest;
+import org.apache.commons.math4.distribution.UniformRealDistribution;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.random.EmpiricalDistribution;
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.stat.descriptive.SummaryStatistics;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/GaussianRandomGeneratorTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/GaussianRandomGeneratorTest.java
 
b/src/test/java/org/apache/commons/math4/random/GaussianRandomGeneratorTest.java
index ecb325e..9c46f0d 100644
--- 
a/src/test/java/org/apache/commons/math4/random/GaussianRandomGeneratorTest.java
+++ 
b/src/test/java/org/apache/commons/math4/random/GaussianRandomGeneratorTest.java
@@ -15,9 +15,12 @@
 //specific language governing permissions and limitations
 //under the License.
 
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
-import org.apache.commons.math3.stat.StatUtils;
+import org.apache.commons.math4.random.GaussianRandomGenerator;
+import org.apache.commons.math4.random.JDKRandomGenerator;
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.stat.StatUtils;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/HaltonSequenceGeneratorTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/HaltonSequenceGeneratorTest.java
 
b/src/test/java/org/apache/commons/math4/random/HaltonSequenceGeneratorTest.java
index bbe8187..cf59363 100644
--- 
a/src/test/java/org/apache/commons/math4/random/HaltonSequenceGeneratorTest.java
+++ 
b/src/test/java/org/apache/commons/math4/random/HaltonSequenceGeneratorTest.java
@@ -14,13 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
 import org.junit.Assert;
-
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.exception.NullArgumentException;
-import org.apache.commons.math3.exception.OutOfRangeException;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.random.HaltonSequenceGenerator;
 import org.junit.Before;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/ISAACTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/random/ISAACTest.java 
b/src/test/java/org/apache/commons/math4/random/ISAACTest.java
index f2edbbd..f8e7e65 100644
--- a/src/test/java/org/apache/commons/math4/random/ISAACTest.java
+++ b/src/test/java/org/apache/commons/math4/random/ISAACTest.java
@@ -15,8 +15,10 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
+import org.apache.commons.math4.random.ISAACRandom;
+import org.apache.commons.math4.random.RandomGenerator;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/MersenneTwisterTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/MersenneTwisterTest.java 
b/src/test/java/org/apache/commons/math4/random/MersenneTwisterTest.java
index 3a72e11..b04e753 100644
--- a/src/test/java/org/apache/commons/math4/random/MersenneTwisterTest.java
+++ b/src/test/java/org/apache/commons/math4/random/MersenneTwisterTest.java
@@ -14,8 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
+import org.apache.commons.math4.random.MersenneTwister;
+import org.apache.commons.math4.random.RandomGenerator;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/RandomAdaptorTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/RandomAdaptorTest.java 
b/src/test/java/org/apache/commons/math4/random/RandomAdaptorTest.java
index 02109ef..1218398 100644
--- a/src/test/java/org/apache/commons/math4/random/RandomAdaptorTest.java
+++ b/src/test/java/org/apache/commons/math4/random/RandomAdaptorTest.java
@@ -14,10 +14,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
 import java.util.Random;
 
+import org.apache.commons.math4.random.RandomAdaptor;
+import org.apache.commons.math4.random.RandomGenerator;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/RandomDataGeneratorTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/RandomDataGeneratorTest.java 
b/src/test/java/org/apache/commons/math4/random/RandomDataGeneratorTest.java
index a0b6e26..fda418c 100644
--- a/src/test/java/org/apache/commons/math4/random/RandomDataGeneratorTest.java
+++ b/src/test/java/org/apache/commons/math4/random/RandomDataGeneratorTest.java
@@ -14,38 +14,41 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
 import java.text.DecimalFormat;
 import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.List;
 
-import org.apache.commons.math3.Retry;
-import org.apache.commons.math3.RetryRunner;
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.distribution.BetaDistribution;
-import org.apache.commons.math3.distribution.BinomialDistribution;
-import org.apache.commons.math3.distribution.BinomialDistributionTest;
-import org.apache.commons.math3.distribution.CauchyDistribution;
-import org.apache.commons.math3.distribution.ChiSquaredDistribution;
-import org.apache.commons.math3.distribution.ExponentialDistribution;
-import org.apache.commons.math3.distribution.FDistribution;
-import org.apache.commons.math3.distribution.GammaDistribution;
-import org.apache.commons.math3.distribution.HypergeometricDistribution;
-import org.apache.commons.math3.distribution.HypergeometricDistributionTest;
-import org.apache.commons.math3.distribution.NormalDistribution;
-import org.apache.commons.math3.distribution.PascalDistribution;
-import org.apache.commons.math3.distribution.PascalDistributionTest;
-import org.apache.commons.math3.distribution.PoissonDistribution;
-import org.apache.commons.math3.distribution.TDistribution;
-import org.apache.commons.math3.distribution.WeibullDistribution;
-import org.apache.commons.math3.distribution.ZipfDistribution;
-import org.apache.commons.math3.distribution.ZipfDistributionTest;
-import org.apache.commons.math3.stat.Frequency;
-import org.apache.commons.math3.stat.inference.ChiSquareTest;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.Retry;
+import org.apache.commons.math4.RetryRunner;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.distribution.BetaDistribution;
+import org.apache.commons.math4.distribution.BinomialDistribution;
+import org.apache.commons.math4.distribution.BinomialDistributionTest;
+import org.apache.commons.math4.distribution.CauchyDistribution;
+import org.apache.commons.math4.distribution.ChiSquaredDistribution;
+import org.apache.commons.math4.distribution.ExponentialDistribution;
+import org.apache.commons.math4.distribution.FDistribution;
+import org.apache.commons.math4.distribution.GammaDistribution;
+import org.apache.commons.math4.distribution.HypergeometricDistribution;
+import org.apache.commons.math4.distribution.HypergeometricDistributionTest;
+import org.apache.commons.math4.distribution.NormalDistribution;
+import org.apache.commons.math4.distribution.PascalDistribution;
+import org.apache.commons.math4.distribution.PascalDistributionTest;
+import org.apache.commons.math4.distribution.PoissonDistribution;
+import org.apache.commons.math4.distribution.TDistribution;
+import org.apache.commons.math4.distribution.WeibullDistribution;
+import org.apache.commons.math4.distribution.ZipfDistribution;
+import org.apache.commons.math4.distribution.ZipfDistributionTest;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.random.RandomDataGenerator;
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.Well19937c;
+import org.apache.commons.math4.stat.Frequency;
+import org.apache.commons.math4.stat.inference.ChiSquareTest;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 import org.junit.runner.RunWith;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/RandomGeneratorAbstractTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/RandomGeneratorAbstractTest.java
 
b/src/test/java/org/apache/commons/math4/random/RandomGeneratorAbstractTest.java
index 0094553..eabbd85 100644
--- 
a/src/test/java/org/apache/commons/math4/random/RandomGeneratorAbstractTest.java
+++ 
b/src/test/java/org/apache/commons/math4/random/RandomGeneratorAbstractTest.java
@@ -14,16 +14,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
 import java.util.Arrays;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.stat.Frequency;
-import org.apache.commons.math3.stat.descriptive.SummaryStatistics;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.random.RandomDataGenerator;
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.stat.Frequency;
+import org.apache.commons.math4.stat.descriptive.SummaryStatistics;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/RandomGeneratorFactoryTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/RandomGeneratorFactoryTest.java 
b/src/test/java/org/apache/commons/math4/random/RandomGeneratorFactoryTest.java
index dc841bc..fc94e88 100644
--- 
a/src/test/java/org/apache/commons/math4/random/RandomGeneratorFactoryTest.java
+++ 
b/src/test/java/org/apache/commons/math4/random/RandomGeneratorFactoryTest.java
@@ -14,10 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
 import java.util.Random;
 
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.RandomGeneratorFactory;
+
 /**
  * Test cases for the {@link RandomGeneratorFactory} class.
  *

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/SobolSequenceGeneratorTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/SobolSequenceGeneratorTest.java 
b/src/test/java/org/apache/commons/math4/random/SobolSequenceGeneratorTest.java
index c09d09b..7ee4d10 100644
--- 
a/src/test/java/org/apache/commons/math4/random/SobolSequenceGeneratorTest.java
+++ 
b/src/test/java/org/apache/commons/math4/random/SobolSequenceGeneratorTest.java
@@ -14,13 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
 import org.junit.Assert;
 
 import java.io.InputStream;
 
-import org.apache.commons.math3.exception.OutOfRangeException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.random.SobolSequenceGenerator;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -75,7 +76,7 @@ public class SobolSequenceGeneratorTest {
     @Test
     public void testConstructor2() throws Exception{
         try {
-            final String RESOURCE_NAME = 
"/assets/org/apache/commons/math3/random/new-joe-kuo-6.1000";
+            final String RESOURCE_NAME = 
"/assets/org/apache/commons/math4/random/new-joe-kuo-6.1000";
             final InputStream is = 
getClass().getResourceAsStream(RESOURCE_NAME);
             new SobolSequenceGenerator(1001, is);
             Assert.fail("an exception should have been thrown");

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/StableRandomGeneratorTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/StableRandomGeneratorTest.java 
b/src/test/java/org/apache/commons/math4/random/StableRandomGeneratorTest.java
index 5531ceb..9ede227 100644
--- 
a/src/test/java/org/apache/commons/math4/random/StableRandomGeneratorTest.java
+++ 
b/src/test/java/org/apache/commons/math4/random/StableRandomGeneratorTest.java
@@ -14,11 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
-import org.apache.commons.math3.exception.OutOfRangeException;
-import org.apache.commons.math3.stat.StatUtils;
-import org.apache.commons.math3.stat.descriptive.DescriptiveStatistics;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.StableRandomGenerator;
+import org.apache.commons.math4.random.Well19937c;
+import org.apache.commons.math4.stat.StatUtils;
+import org.apache.commons.math4.stat.descriptive.DescriptiveStatistics;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/SynchronizedRandomGeneratorTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/SynchronizedRandomGeneratorTest.java
 
b/src/test/java/org/apache/commons/math4/random/SynchronizedRandomGeneratorTest.java
index c91103b..2c1fe43 100644
--- 
a/src/test/java/org/apache/commons/math4/random/SynchronizedRandomGeneratorTest.java
+++ 
b/src/test/java/org/apache/commons/math4/random/SynchronizedRandomGeneratorTest.java
@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -24,6 +24,9 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.Future;
 
+import org.apache.commons.math4.random.MersenneTwister;
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.SynchronizedRandomGenerator;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/TestRandomGenerator.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/TestRandomGenerator.java 
b/src/test/java/org/apache/commons/math4/random/TestRandomGenerator.java
index a15dd17..fc820b2 100644
--- a/src/test/java/org/apache/commons/math4/random/TestRandomGenerator.java
+++ b/src/test/java/org/apache/commons/math4/random/TestRandomGenerator.java
@@ -14,9 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 import java.util.Random;
 
+import org.apache.commons.math4.random.AbstractRandomGenerator;
+
 /**
  * Dummy AbstractRandomGenerator concrete subclass that just wraps a
  * java.util.Random instance.  Used by AbstractRandomGeneratorTest to test

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/UncorrelatedRandomVectorGeneratorTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/UncorrelatedRandomVectorGeneratorTest.java
 
b/src/test/java/org/apache/commons/math4/random/UncorrelatedRandomVectorGeneratorTest.java
index 4195273..bc80769 100644
--- 
a/src/test/java/org/apache/commons/math4/random/UncorrelatedRandomVectorGeneratorTest.java
+++ 
b/src/test/java/org/apache/commons/math4/random/UncorrelatedRandomVectorGeneratorTest.java
@@ -15,12 +15,15 @@
 //specific language governing permissions and limitations
 //under the License.
 
-package org.apache.commons.math3.random;
-
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.stat.descriptive.moment.VectorialCovariance;
-import org.apache.commons.math3.stat.descriptive.moment.VectorialMean;
+package org.apache.commons.math4.random;
 
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.random.GaussianRandomGenerator;
+import org.apache.commons.math4.random.JDKRandomGenerator;
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.UncorrelatedRandomVectorGenerator;
+import org.apache.commons.math4.stat.descriptive.moment.VectorialCovariance;
+import org.apache.commons.math4.stat.descriptive.moment.VectorialMean;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/UniformRandomGeneratorTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/UniformRandomGeneratorTest.java 
b/src/test/java/org/apache/commons/math4/random/UniformRandomGeneratorTest.java
index 554a3eb..fbe9271 100644
--- 
a/src/test/java/org/apache/commons/math4/random/UniformRandomGeneratorTest.java
+++ 
b/src/test/java/org/apache/commons/math4/random/UniformRandomGeneratorTest.java
@@ -15,9 +15,12 @@
 //specific language governing permissions and limitations
 //under the License.
 
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
-import org.apache.commons.math3.stat.StatUtils;
+import org.apache.commons.math4.random.JDKRandomGenerator;
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.UniformRandomGenerator;
+import org.apache.commons.math4.stat.StatUtils;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/UnitSphereRandomVectorGeneratorTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/random/UnitSphereRandomVectorGeneratorTest.java
 
b/src/test/java/org/apache/commons/math4/random/UnitSphereRandomVectorGeneratorTest.java
index 4676a82..aa60e1f 100644
--- 
a/src/test/java/org/apache/commons/math4/random/UnitSphereRandomVectorGeneratorTest.java
+++ 
b/src/test/java/org/apache/commons/math4/random/UnitSphereRandomVectorGeneratorTest.java
@@ -14,9 +14,12 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.random.JDKRandomGenerator;
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.UnitSphereRandomVectorGenerator;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/ValueServerTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/random/ValueServerTest.java 
b/src/test/java/org/apache/commons/math4/random/ValueServerTest.java
index 145b9b8..43d3554 100644
--- a/src/test/java/org/apache/commons/math4/random/ValueServerTest.java
+++ b/src/test/java/org/apache/commons/math4/random/ValueServerTest.java
@@ -14,15 +14,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
 import java.net.URL;
 import java.util.Arrays;
 
-import org.apache.commons.math3.RetryRunner;
-import org.apache.commons.math3.exception.MathIllegalStateException;
-import org.apache.commons.math3.exception.ZeroException;
-import org.apache.commons.math3.stat.descriptive.SummaryStatistics;
+import org.apache.commons.math4.RetryRunner;
+import org.apache.commons.math4.exception.MathIllegalStateException;
+import org.apache.commons.math4.exception.ZeroException;
+import org.apache.commons.math4.random.ValueServer;
+import org.apache.commons.math4.random.Well19937c;
+import org.apache.commons.math4.stat.descriptive.SummaryStatistics;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/Well1024aTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/random/Well1024aTest.java 
b/src/test/java/org/apache/commons/math4/random/Well1024aTest.java
index 239194c..d5e0e67 100644
--- a/src/test/java/org/apache/commons/math4/random/Well1024aTest.java
+++ b/src/test/java/org/apache/commons/math4/random/Well1024aTest.java
@@ -14,10 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.Well1024a;
 import org.junit.Assert;
-
 import org.junit.Test;
 
 public class Well1024aTest extends RandomGeneratorAbstractTest {

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/Well19937aTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/random/Well19937aTest.java 
b/src/test/java/org/apache/commons/math4/random/Well19937aTest.java
index ff9fe95..170457a 100644
--- a/src/test/java/org/apache/commons/math4/random/Well19937aTest.java
+++ b/src/test/java/org/apache/commons/math4/random/Well19937aTest.java
@@ -14,8 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.Well19937a;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/Well19937cTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/random/Well19937cTest.java 
b/src/test/java/org/apache/commons/math4/random/Well19937cTest.java
index a9f7a8e..45d188b 100644
--- a/src/test/java/org/apache/commons/math4/random/Well19937cTest.java
+++ b/src/test/java/org/apache/commons/math4/random/Well19937cTest.java
@@ -14,8 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.Well19937c;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/Well44497aTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/random/Well44497aTest.java 
b/src/test/java/org/apache/commons/math4/random/Well44497aTest.java
index ac46eb7..436b64a 100644
--- a/src/test/java/org/apache/commons/math4/random/Well44497aTest.java
+++ b/src/test/java/org/apache/commons/math4/random/Well44497aTest.java
@@ -14,8 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.Well44497a;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/Well44497bTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/random/Well44497bTest.java 
b/src/test/java/org/apache/commons/math4/random/Well44497bTest.java
index 23be971..d9e519f 100644
--- a/src/test/java/org/apache/commons/math4/random/Well44497bTest.java
+++ b/src/test/java/org/apache/commons/math4/random/Well44497bTest.java
@@ -14,8 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.Well44497b;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/random/Well512aTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/random/Well512aTest.java 
b/src/test/java/org/apache/commons/math4/random/Well512aTest.java
index 01cfe75..f3b106c 100644
--- a/src/test/java/org/apache/commons/math4/random/Well512aTest.java
+++ b/src/test/java/org/apache/commons/math4/random/Well512aTest.java
@@ -14,8 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.random;
+package org.apache.commons.math4.random;
 
+import org.apache.commons.math4.random.RandomGenerator;
+import org.apache.commons.math4.random.Well512a;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/special/BesselJTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/special/BesselJTest.java 
b/src/test/java/org/apache/commons/math4/special/BesselJTest.java
index 7477bf4..a50ccc4 100644
--- a/src/test/java/org/apache/commons/math4/special/BesselJTest.java
+++ b/src/test/java/org/apache/commons/math4/special/BesselJTest.java
@@ -14,9 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.special;
+package org.apache.commons.math4.special;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.special.BesselJ;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/special/BetaTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/special/BetaTest.java 
b/src/test/java/org/apache/commons/math4/special/BetaTest.java
index d313639..5a42dbc 100644
--- a/src/test/java/org/apache/commons/math4/special/BetaTest.java
+++ b/src/test/java/org/apache/commons/math4/special/BetaTest.java
@@ -14,16 +14,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.special;
+package org.apache.commons.math4.special;
 
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.exception.OutOfRangeException;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.OutOfRangeException;
+import org.apache.commons.math4.special.Beta;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/special/ErfTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/special/ErfTest.java 
b/src/test/java/org/apache/commons/math4/special/ErfTest.java
index 3e26662..e9d6813 100644
--- a/src/test/java/org/apache/commons/math4/special/ErfTest.java
+++ b/src/test/java/org/apache/commons/math4/special/ErfTest.java
@@ -15,11 +15,11 @@
  *  limitations under the License.
  */
 
-package org.apache.commons.math3.special;
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.util.FastMath;
+package org.apache.commons.math4.special;
 
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.special.Erf;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/special/GammaTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/special/GammaTest.java 
b/src/test/java/org/apache/commons/math4/special/GammaTest.java
index 539f316..70275f3 100644
--- a/src/test/java/org/apache/commons/math4/special/GammaTest.java
+++ b/src/test/java/org/apache/commons/math4/special/GammaTest.java
@@ -14,12 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.special;
+package org.apache.commons.math4.special;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.exception.NumberIsTooLargeException;
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.NumberIsTooLargeException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.special.Gamma;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/CertifiedDataTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/stat/CertifiedDataTest.java 
b/src/test/java/org/apache/commons/math4/stat/CertifiedDataTest.java
index 8954edd..eb368c2 100644
--- a/src/test/java/org/apache/commons/math4/stat/CertifiedDataTest.java
+++ b/src/test/java/org/apache/commons/math4/stat/CertifiedDataTest.java
@@ -14,15 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat;
+package org.apache.commons.math4.stat;
 
 import java.io.BufferedReader;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 
-
-import org.apache.commons.math3.stat.descriptive.DescriptiveStatistics;
-import org.apache.commons.math3.stat.descriptive.SummaryStatistics;
+import org.apache.commons.math4.stat.descriptive.DescriptiveStatistics;
+import org.apache.commons.math4.stat.descriptive.SummaryStatistics;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/FrequencyTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/stat/FrequencyTest.java 
b/src/test/java/org/apache/commons/math4/stat/FrequencyTest.java
index 6e4b56d..ae1a4d9 100644
--- a/src/test/java/org/apache/commons/math4/stat/FrequencyTest.java
+++ b/src/test/java/org/apache/commons/math4/stat/FrequencyTest.java
@@ -14,7 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat;
+package org.apache.commons.math4.stat;
 
 import java.io.BufferedReader;
 import java.io.StringReader;
@@ -22,9 +22,9 @@ import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
 
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.stat.Frequency;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/StatUtilsTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/stat/StatUtilsTest.java 
b/src/test/java/org/apache/commons/math4/stat/StatUtilsTest.java
index dccb7b6..9837b85 100644
--- a/src/test/java/org/apache/commons/math4/stat/StatUtilsTest.java
+++ b/src/test/java/org/apache/commons/math4/stat/StatUtilsTest.java
@@ -14,14 +14,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat;
+package org.apache.commons.math4.stat;
 
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.stat.descriptive.DescriptiveStatistics;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.Precision;
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.stat.StatUtils;
+import org.apache.commons.math4.stat.descriptive.DescriptiveStatistics;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.Precision;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/clustering/DBSCANClustererTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/clustering/DBSCANClustererTest.java
 
b/src/test/java/org/apache/commons/math4/stat/clustering/DBSCANClustererTest.java
index 657e2de..0534a5b 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/clustering/DBSCANClustererTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/clustering/DBSCANClustererTest.java
@@ -14,13 +14,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.clustering;
+package org.apache.commons.math4.stat.clustering;
 
 import java.util.Arrays;
 import java.util.List;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.exception.NullArgumentException;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.exception.NullArgumentException;
+import org.apache.commons.math4.stat.clustering.Cluster;
+import org.apache.commons.math4.stat.clustering.DBSCANClusterer;
+import org.apache.commons.math4.stat.clustering.EuclideanDoublePoint;
+import org.apache.commons.math4.stat.clustering.EuclideanIntegerPoint;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/clustering/EuclideanDoublePointTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/clustering/EuclideanDoublePointTest.java
 
b/src/test/java/org/apache/commons/math4/stat/clustering/EuclideanDoublePointTest.java
index 8c37594..290b284 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/clustering/EuclideanDoublePointTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/clustering/EuclideanDoublePointTest.java
@@ -14,13 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.clustering;
+package org.apache.commons.math4.stat.clustering;
 
 import java.util.ArrayList;
 import java.util.List;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.stat.clustering.EuclideanDoublePoint;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/clustering/EuclideanIntegerPointTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/clustering/EuclideanIntegerPointTest.java
 
b/src/test/java/org/apache/commons/math4/stat/clustering/EuclideanIntegerPointTest.java
index 038f8a8..e38c0d0 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/clustering/EuclideanIntegerPointTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/clustering/EuclideanIntegerPointTest.java
@@ -15,14 +15,15 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.stat.clustering;
+package org.apache.commons.math4.stat.clustering;
 
 
 import java.util.ArrayList;
 import java.util.List;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.stat.clustering.EuclideanIntegerPoint;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/clustering/KMeansPlusPlusClustererTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/clustering/KMeansPlusPlusClustererTest.java
 
b/src/test/java/org/apache/commons/math4/stat/clustering/KMeansPlusPlusClustererTest.java
index d14f77b..02538d9 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/clustering/KMeansPlusPlusClustererTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/clustering/KMeansPlusPlusClustererTest.java
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.stat.clustering;
+package org.apache.commons.math4.stat.clustering;
 
 
 import java.util.ArrayList;
@@ -24,7 +24,11 @@ import java.util.Collection;
 import java.util.List;
 import java.util.Random;
 
-import org.apache.commons.math3.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.exception.NumberIsTooSmallException;
+import org.apache.commons.math4.stat.clustering.Cluster;
+import org.apache.commons.math4.stat.clustering.Clusterable;
+import org.apache.commons.math4.stat.clustering.EuclideanIntegerPoint;
+import org.apache.commons.math4.stat.clustering.KMeansPlusPlusClusterer;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/correlation/CovarianceTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/correlation/CovarianceTest.java 
b/src/test/java/org/apache/commons/math4/stat/correlation/CovarianceTest.java
index f69e623..f0c6fbe 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/correlation/CovarianceTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/correlation/CovarianceTest.java
@@ -14,13 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.correlation;
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.exception.NotStrictlyPositiveException;
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.linear.Array2DRowRealMatrix;
-import org.apache.commons.math3.stat.descriptive.moment.Variance;
+package org.apache.commons.math4.stat.correlation;
+
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.NotStrictlyPositiveException;
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.stat.correlation.Covariance;
+import org.apache.commons.math4.stat.descriptive.moment.Variance;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/correlation/KendallsCorrelationTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/correlation/KendallsCorrelationTest.java
 
b/src/test/java/org/apache/commons/math4/stat/correlation/KendallsCorrelationTest.java
index 85723e7..ffc9cbb 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/correlation/KendallsCorrelationTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/correlation/KendallsCorrelationTest.java
@@ -14,13 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.correlation;
+package org.apache.commons.math4.stat.correlation;
 
 import java.util.Arrays;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.linear.BlockRealMatrix;
-import org.apache.commons.math3.linear.RealMatrix;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.linear.BlockRealMatrix;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.stat.correlation.KendallsCorrelation;
 import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/correlation/PearsonsCorrelationTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/correlation/PearsonsCorrelationTest.java
 
b/src/test/java/org/apache/commons/math4/stat/correlation/PearsonsCorrelationTest.java
index bce9c42..d36513b 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/correlation/PearsonsCorrelationTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/correlation/PearsonsCorrelationTest.java
@@ -14,13 +14,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.correlation;
+package org.apache.commons.math4.stat.correlation;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.distribution.TDistribution;
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.linear.BlockRealMatrix;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.distribution.TDistribution;
+import org.apache.commons.math4.linear.BlockRealMatrix;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.stat.correlation.Covariance;
+import org.apache.commons.math4.stat.correlation.PearsonsCorrelation;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/correlation/SpearmansRankCorrelationTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/correlation/SpearmansRankCorrelationTest.java
 
b/src/test/java/org/apache/commons/math4/stat/correlation/SpearmansRankCorrelationTest.java
index 36b0c56..59cf485 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/correlation/SpearmansRankCorrelationTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/correlation/SpearmansRankCorrelationTest.java
@@ -14,14 +14,15 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.correlation;
+package org.apache.commons.math4.stat.correlation;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.linear.BlockRealMatrix;
-import org.apache.commons.math3.linear.MatrixUtils;
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.stat.ranking.NaNStrategy;
-import org.apache.commons.math3.stat.ranking.NaturalRanking;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.linear.BlockRealMatrix;
+import org.apache.commons.math4.linear.MatrixUtils;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.stat.correlation.SpearmansCorrelation;
+import org.apache.commons.math4.stat.ranking.NaNStrategy;
+import org.apache.commons.math4.stat.ranking.NaturalRanking;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/correlation/StorelessCovarianceTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/correlation/StorelessCovarianceTest.java
 
b/src/test/java/org/apache/commons/math4/stat/correlation/StorelessCovarianceTest.java
index 06052e9..09a2297 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/correlation/StorelessCovarianceTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/correlation/StorelessCovarianceTest.java
@@ -14,12 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.correlation;
+package org.apache.commons.math4.stat.correlation;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.linear.Array2DRowRealMatrix;
-import org.apache.commons.math3.linear.RealMatrix;
-import org.apache.commons.math3.random.ISAACRandom;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.linear.Array2DRowRealMatrix;
+import org.apache.commons.math4.linear.RealMatrix;
+import org.apache.commons.math4.random.ISAACRandom;
+import org.apache.commons.math4.stat.correlation.StorelessBivariateCovariance;
+import org.apache.commons.math4.stat.correlation.StorelessCovariance;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/data/CertifiedDataAbstractTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/data/CertifiedDataAbstractTest.java
 
b/src/test/java/org/apache/commons/math4/stat/data/CertifiedDataAbstractTest.java
index 51cf59b..32cfbdd 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/data/CertifiedDataAbstractTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/data/CertifiedDataAbstractTest.java
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.stat.data;
+package org.apache.commons.math4.stat.data;
 
 import java.io.BufferedReader;
 import java.io.IOException;
@@ -26,10 +26,9 @@ import java.net.URL;
 import java.util.HashMap;
 import java.util.Map;
 
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.stat.descriptive.DescriptiveStatistics;
-import org.apache.commons.math3.stat.descriptive.SummaryStatistics;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.stat.descriptive.DescriptiveStatistics;
+import org.apache.commons.math4.stat.descriptive.SummaryStatistics;
 import org.junit.After;
 import org.junit.Assert;
 import org.junit.Before;

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/data/LewTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/stat/data/LewTest.java 
b/src/test/java/org/apache/commons/math4/stat/data/LewTest.java
index dcc8574..3009303 100644
--- a/src/test/java/org/apache/commons/math4/stat/data/LewTest.java
+++ b/src/test/java/org/apache/commons/math4/stat/data/LewTest.java
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.stat.data;
+package org.apache.commons.math4.stat.data;
 
 /**
  */
@@ -23,6 +23,6 @@ public class LewTest extends CertifiedDataAbstractTest {
 
     @Override
     protected String getResourceName() {
-        return "org/apache/commons/math3/stat/data/Lew.txt";
+        return "org/apache/commons/math4/stat/data/Lew.txt";
     }
 }

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/data/LotteryTest.java
----------------------------------------------------------------------
diff --git a/src/test/java/org/apache/commons/math4/stat/data/LotteryTest.java 
b/src/test/java/org/apache/commons/math4/stat/data/LotteryTest.java
index b4bb76f..9807015 100644
--- a/src/test/java/org/apache/commons/math4/stat/data/LotteryTest.java
+++ b/src/test/java/org/apache/commons/math4/stat/data/LotteryTest.java
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.stat.data;
+package org.apache.commons.math4.stat.data;
 
 /**
  */
@@ -23,6 +23,6 @@ public class LotteryTest extends CertifiedDataAbstractTest {
 
     @Override
     protected String getResourceName() {
-        return "org/apache/commons/math3/stat/data/Lottery.txt";
+        return "org/apache/commons/math4/stat/data/Lottery.txt";
     }
 }

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/AbstractUnivariateStatisticTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/AbstractUnivariateStatisticTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/AbstractUnivariateStatisticTest.java
index ef379cc..dca0ece 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/AbstractUnivariateStatisticTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/AbstractUnivariateStatisticTest.java
@@ -14,11 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
 
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.stat.descriptive.moment.Mean;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.stat.descriptive.moment.Mean;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/AggregateSummaryStatisticsTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/AggregateSummaryStatisticsTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/AggregateSummaryStatisticsTest.java
index ce48dbe..1a8324d 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/AggregateSummaryStatisticsTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/AggregateSummaryStatisticsTest.java
@@ -15,18 +15,21 @@
  * limitations under the License.
  */
 
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
 
 import java.util.ArrayList;
 import java.util.Collection;
 
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.distribution.RealDistribution;
-import org.apache.commons.math3.distribution.UniformRealDistribution;
-import org.apache.commons.math3.distribution.IntegerDistribution;
-import org.apache.commons.math3.distribution.UniformIntegerDistribution;
-import org.apache.commons.math3.util.Precision;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.distribution.IntegerDistribution;
+import org.apache.commons.math4.distribution.RealDistribution;
+import org.apache.commons.math4.distribution.UniformIntegerDistribution;
+import org.apache.commons.math4.distribution.UniformRealDistribution;
+import org.apache.commons.math4.stat.descriptive.AggregateSummaryStatistics;
+import org.apache.commons.math4.stat.descriptive.StatisticalSummary;
+import org.apache.commons.math4.stat.descriptive.StatisticalSummaryValues;
+import org.apache.commons.math4.stat.descriptive.SummaryStatistics;
+import org.apache.commons.math4.util.Precision;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/DescriptiveStatisticsTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/DescriptiveStatisticsTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/DescriptiveStatisticsTest.java
index d9e6aa9..5afedd5 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/DescriptiveStatisticsTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/DescriptiveStatisticsTest.java
@@ -11,21 +11,23 @@
  * KIND, either express or implied. See the License for the specific language
  * governing permissions and limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
 
 import java.util.Locale;
 
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.stat.descriptive.rank.Percentile;
-import org.apache.commons.math3.stat.descriptive.moment.GeometricMean;
-import org.apache.commons.math3.stat.descriptive.moment.Mean;
-import org.apache.commons.math3.stat.descriptive.moment.Variance;
-import org.apache.commons.math3.stat.descriptive.rank.Max;
-import org.apache.commons.math3.stat.descriptive.rank.Min;
-import org.apache.commons.math3.stat.descriptive.summary.Sum;
-import org.apache.commons.math3.stat.descriptive.summary.SumOfSquares;
-import org.apache.commons.math3.util.Precision;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.stat.descriptive.DescriptiveStatistics;
+import org.apache.commons.math4.stat.descriptive.SummaryStatistics;
+import org.apache.commons.math4.stat.descriptive.UnivariateStatistic;
+import org.apache.commons.math4.stat.descriptive.moment.GeometricMean;
+import org.apache.commons.math4.stat.descriptive.moment.Mean;
+import org.apache.commons.math4.stat.descriptive.moment.Variance;
+import org.apache.commons.math4.stat.descriptive.rank.Max;
+import org.apache.commons.math4.stat.descriptive.rank.Min;
+import org.apache.commons.math4.stat.descriptive.rank.Percentile;
+import org.apache.commons.math4.stat.descriptive.summary.Sum;
+import org.apache.commons.math4.stat.descriptive.summary.SumOfSquares;
+import org.apache.commons.math4.util.Precision;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImpl.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImpl.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImpl.java
index b24b753..7bdd800 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImpl.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImpl.java
@@ -14,18 +14,18 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
 
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.List;
 
-import org.apache.commons.math3.exception.MathIllegalArgumentException;
-import org.apache.commons.math3.stat.descriptive.UnivariateStatistic;
-import org.apache.commons.math3.stat.descriptive.DescriptiveStatistics;
-import org.apache.commons.math3.util.DefaultTransformer;
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.NumberTransformer;
+import org.apache.commons.math4.exception.MathIllegalArgumentException;
+import org.apache.commons.math4.stat.descriptive.DescriptiveStatistics;
+import org.apache.commons.math4.stat.descriptive.UnivariateStatistic;
+import org.apache.commons.math4.util.DefaultTransformer;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.NumberTransformer;
 
 /**
  */

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImplTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImplTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImplTest.java
index c5a4f80..964d066 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImplTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/ListUnivariateImplTest.java
@@ -14,14 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
 
 import java.util.ArrayList;
 import java.util.List;
 
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.stat.descriptive.DescriptiveStatistics;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/MixedListUnivariateImplTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/MixedListUnivariateImplTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/MixedListUnivariateImplTest.java
index 152ff87..8e69064 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/MixedListUnivariateImplTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/MixedListUnivariateImplTest.java
@@ -14,16 +14,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
 
 import java.io.Serializable;
 import java.util.ArrayList;
 import java.util.List;
 
-
-import org.apache.commons.math3.util.FastMath;
-import org.apache.commons.math3.util.NumberTransformer;
-import org.apache.commons.math3.util.TransformerMap;
+import org.apache.commons.math4.stat.descriptive.DescriptiveStatistics;
+import org.apache.commons.math4.util.FastMath;
+import org.apache.commons.math4.util.NumberTransformer;
+import org.apache.commons.math4.util.TransformerMap;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/MultivariateSummaryStatisticsTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/MultivariateSummaryStatisticsTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/MultivariateSummaryStatisticsTest.java
index 68252ef..3982428 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/MultivariateSummaryStatisticsTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/MultivariateSummaryStatisticsTest.java
@@ -14,16 +14,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
 
 
 import java.util.Locale;
 
-import org.apache.commons.math3.exception.DimensionMismatchException;
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.stat.descriptive.moment.Mean;
-import org.apache.commons.math3.util.FastMath;
-
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.exception.DimensionMismatchException;
+import org.apache.commons.math4.stat.descriptive.MultivariateSummaryStatistics;
+import org.apache.commons.math4.stat.descriptive.StorelessUnivariateStatistic;
+import org.apache.commons.math4.stat.descriptive.moment.Mean;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Test;
 import org.junit.Assert;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/StatisticalSummaryValuesTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/StatisticalSummaryValuesTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/StatisticalSummaryValuesTest.java
index e3b766e..1c27d8c 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/StatisticalSummaryValuesTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/StatisticalSummaryValuesTest.java
@@ -14,13 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
 
 
 import java.util.Locale;
 
-
-import org.apache.commons.math3.TestUtils;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.stat.descriptive.StatisticalSummaryValues;
 import org.junit.Assert;
 import org.junit.Test;
 /**

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/StorelessUnivariateStatisticAbstractTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/StorelessUnivariateStatisticAbstractTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/StorelessUnivariateStatisticAbstractTest.java
index c42b80e..8ac3269 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/StorelessUnivariateStatisticAbstractTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/StorelessUnivariateStatisticAbstractTest.java
@@ -14,11 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
 
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.stat.descriptive.moment.SecondMoment;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.stat.descriptive.StorelessUnivariateStatistic;
+import org.apache.commons.math4.stat.descriptive.UnivariateStatistic;
+import org.apache.commons.math4.stat.descriptive.moment.SecondMoment;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/SummaryStatisticsTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/SummaryStatisticsTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/SummaryStatisticsTest.java
index e1a1f98..d546ca3 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/SummaryStatisticsTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/SummaryStatisticsTest.java
@@ -14,16 +14,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
 
 
-import org.apache.commons.math3.TestUtils;
-
-import org.apache.commons.math3.stat.descriptive.moment.GeometricMean;
-import org.apache.commons.math3.stat.descriptive.moment.Mean;
-import org.apache.commons.math3.stat.descriptive.moment.Variance;
-import org.apache.commons.math3.stat.descriptive.summary.Sum;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.stat.descriptive.StatisticalSummary;
+import org.apache.commons.math4.stat.descriptive.SummaryStatistics;
+import org.apache.commons.math4.stat.descriptive.moment.GeometricMean;
+import org.apache.commons.math4.stat.descriptive.moment.Mean;
+import org.apache.commons.math4.stat.descriptive.moment.Variance;
+import org.apache.commons.math4.stat.descriptive.summary.Sum;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 /**

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedDescriptiveStatisticsTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedDescriptiveStatisticsTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedDescriptiveStatisticsTest.java
index aad7424..528516f 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedDescriptiveStatisticsTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedDescriptiveStatisticsTest.java
@@ -11,7 +11,10 @@
  * KIND, either express or implied. See the License for the specific language
  * governing permissions and limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
+
+import org.apache.commons.math4.stat.descriptive.DescriptiveStatistics;
+import 
org.apache.commons.math4.stat.descriptive.SynchronizedDescriptiveStatistics;
 
 
 /**

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedMultivariateSummaryStatisticsTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedMultivariateSummaryStatisticsTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedMultivariateSummaryStatisticsTest.java
index 34d40b4..f674b18 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedMultivariateSummaryStatisticsTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedMultivariateSummaryStatisticsTest.java
@@ -11,7 +11,10 @@
  * KIND, either express or implied. See the License for the specific language
  * governing permissions and limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
+
+import org.apache.commons.math4.stat.descriptive.MultivariateSummaryStatistics;
+import 
org.apache.commons.math4.stat.descriptive.SynchronizedMultivariateSummaryStatistics;
 
 
 /**

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedSummaryStatisticsTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedSummaryStatisticsTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedSummaryStatisticsTest.java
index 8cd3c82..30fd09e 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedSummaryStatisticsTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/SynchronizedSummaryStatisticsTest.java
@@ -11,7 +11,10 @@
  * KIND, either express or implied. See the License for the specific language
  * governing permissions and limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
+
+import org.apache.commons.math4.stat.descriptive.SummaryStatistics;
+import org.apache.commons.math4.stat.descriptive.SynchronizedSummaryStatistics;
 
 /**
  * Test cases for the {@link SynchronizedSummaryStatisticsTest} class.

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/UnivariateStatisticAbstractTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/UnivariateStatisticAbstractTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/UnivariateStatisticAbstractTest.java
index ac15c85..bca7dc8 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/UnivariateStatisticAbstractTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/UnivariateStatisticAbstractTest.java
@@ -14,18 +14,19 @@ s * Unless required by applicable law or agreed to in 
writing, software
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive;
+package org.apache.commons.math4.stat.descriptive;
 
 import java.util.ArrayList;
 import java.util.List;
 
-
-import org.apache.commons.math3.TestUtils;
-import org.apache.commons.math3.distribution.IntegerDistribution;
-import org.apache.commons.math3.distribution.UniformIntegerDistribution;
-import org.apache.commons.math3.distribution.RealDistribution;
-import org.apache.commons.math3.distribution.NormalDistribution;
-import org.apache.commons.math3.util.FastMath;
+import org.apache.commons.math4.TestUtils;
+import org.apache.commons.math4.distribution.IntegerDistribution;
+import org.apache.commons.math4.distribution.NormalDistribution;
+import org.apache.commons.math4.distribution.RealDistribution;
+import org.apache.commons.math4.distribution.UniformIntegerDistribution;
+import org.apache.commons.math4.stat.descriptive.UnivariateStatistic;
+import org.apache.commons.math4.stat.descriptive.WeightedEvaluation;
+import org.apache.commons.math4.util.FastMath;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/moment/FirstMomentTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/moment/FirstMomentTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/moment/FirstMomentTest.java
index 5ff6eb6..ca0566f 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/moment/FirstMomentTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/moment/FirstMomentTest.java
@@ -14,10 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive.moment;
+package org.apache.commons.math4.stat.descriptive.moment;
 
-import 
org.apache.commons.math3.stat.descriptive.StorelessUnivariateStatisticAbstractTest;
-import org.apache.commons.math3.stat.descriptive.UnivariateStatistic;
+import 
org.apache.commons.math4.stat.descriptive.StorelessUnivariateStatisticAbstractTest;
+import org.apache.commons.math4.stat.descriptive.UnivariateStatistic;
+import org.apache.commons.math4.stat.descriptive.moment.FirstMoment;
 import org.junit.Assert;
 import org.junit.Test;
 
@@ -30,7 +31,7 @@ public class FirstMomentTest extends 
StorelessUnivariateStatisticAbstractTest{
     protected FirstMoment stat;
 
     /**
-     * @see 
org.apache.commons.math3.stat.descriptive.UnivariateStatisticAbstractTest#getUnivariateStatistic()
+     * @see 
org.apache.commons.math4.stat.descriptive.UnivariateStatisticAbstractTest#getUnivariateStatistic()
      */
     @Override
     public UnivariateStatistic getUnivariateStatistic() {
@@ -38,7 +39,7 @@ public class FirstMomentTest extends 
StorelessUnivariateStatisticAbstractTest{
     }
 
     /**
-     * @see 
org.apache.commons.math3.stat.descriptive.UnivariateStatisticAbstractTest#expectedValue()
+     * @see 
org.apache.commons.math4.stat.descriptive.UnivariateStatisticAbstractTest#expectedValue()
      */
     @Override
     public double expectedValue() {

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/moment/FourthMomentTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/moment/FourthMomentTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/moment/FourthMomentTest.java
index 61c5070..a3b51c8 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/moment/FourthMomentTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/moment/FourthMomentTest.java
@@ -14,10 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive.moment;
+package org.apache.commons.math4.stat.descriptive.moment;
 
-import 
org.apache.commons.math3.stat.descriptive.StorelessUnivariateStatisticAbstractTest;
-import org.apache.commons.math3.stat.descriptive.UnivariateStatistic;
+import 
org.apache.commons.math4.stat.descriptive.StorelessUnivariateStatisticAbstractTest;
+import org.apache.commons.math4.stat.descriptive.UnivariateStatistic;
+import org.apache.commons.math4.stat.descriptive.moment.FourthMoment;
 
 /**
  * Test cases for the {@link FourthMoment} class.
@@ -28,7 +29,7 @@ public class FourthMomentTest extends 
StorelessUnivariateStatisticAbstractTest{
     protected FourthMoment stat;
 
     /**
-     * @see 
org.apache.commons.math3.stat.descriptive.UnivariateStatisticAbstractTest#getUnivariateStatistic()
+     * @see 
org.apache.commons.math4.stat.descriptive.UnivariateStatisticAbstractTest#getUnivariateStatistic()
      */
     @Override
     public UnivariateStatistic getUnivariateStatistic() {
@@ -36,7 +37,7 @@ public class FourthMomentTest extends 
StorelessUnivariateStatisticAbstractTest{
     }
 
     /**
-     * @see 
org.apache.commons.math3.stat.descriptive.UnivariateStatisticAbstractTest#expectedValue()
+     * @see 
org.apache.commons.math4.stat.descriptive.UnivariateStatisticAbstractTest#expectedValue()
      */
     @Override
     public double expectedValue() {

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/moment/GeometricMeanTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/moment/GeometricMeanTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/moment/GeometricMeanTest.java
index 4622637..b8462a9 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/moment/GeometricMeanTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/moment/GeometricMeanTest.java
@@ -14,10 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive.moment;
+package org.apache.commons.math4.stat.descriptive.moment;
 
-import 
org.apache.commons.math3.stat.descriptive.StorelessUnivariateStatisticAbstractTest;
-import org.apache.commons.math3.stat.descriptive.UnivariateStatistic;
+import 
org.apache.commons.math4.stat.descriptive.StorelessUnivariateStatisticAbstractTest;
+import org.apache.commons.math4.stat.descriptive.UnivariateStatistic;
+import org.apache.commons.math4.stat.descriptive.moment.GeometricMean;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/moment/InteractionTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/moment/InteractionTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/moment/InteractionTest.java
index f6d8433..3d168cb 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/moment/InteractionTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/moment/InteractionTest.java
@@ -14,8 +14,13 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive.moment;
+package org.apache.commons.math4.stat.descriptive.moment;
 
+import org.apache.commons.math4.stat.descriptive.moment.FourthMoment;
+import org.apache.commons.math4.stat.descriptive.moment.Kurtosis;
+import org.apache.commons.math4.stat.descriptive.moment.Mean;
+import org.apache.commons.math4.stat.descriptive.moment.Skewness;
+import org.apache.commons.math4.stat.descriptive.moment.Variance;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/moment/KurtosisTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/moment/KurtosisTest.java
 
b/src/test/java/org/apache/commons/math4/stat/descriptive/moment/KurtosisTest.java
index 48193ec..eb34f86 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/moment/KurtosisTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/moment/KurtosisTest.java
@@ -14,10 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive.moment;
+package org.apache.commons.math4.stat.descriptive.moment;
 
-import 
org.apache.commons.math3.stat.descriptive.StorelessUnivariateStatisticAbstractTest;
-import org.apache.commons.math3.stat.descriptive.UnivariateStatistic;
+import 
org.apache.commons.math4.stat.descriptive.StorelessUnivariateStatisticAbstractTest;
+import org.apache.commons.math4.stat.descriptive.UnivariateStatistic;
+import org.apache.commons.math4.stat.descriptive.moment.Kurtosis;
 import org.junit.Assert;
 import org.junit.Test;
 

http://git-wip-us.apache.org/repos/asf/commons-math/blob/e4e1ac23/src/test/java/org/apache/commons/math4/stat/descriptive/moment/MeanTest.java
----------------------------------------------------------------------
diff --git 
a/src/test/java/org/apache/commons/math4/stat/descriptive/moment/MeanTest.java 
b/src/test/java/org/apache/commons/math4/stat/descriptive/moment/MeanTest.java
index ef589d9..6f95f75 100644
--- 
a/src/test/java/org/apache/commons/math4/stat/descriptive/moment/MeanTest.java
+++ 
b/src/test/java/org/apache/commons/math4/stat/descriptive/moment/MeanTest.java
@@ -14,10 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.commons.math3.stat.descriptive.moment;
+package org.apache.commons.math4.stat.descriptive.moment;
 
-import 
org.apache.commons.math3.stat.descriptive.StorelessUnivariateStatisticAbstractTest;
-import org.apache.commons.math3.stat.descriptive.UnivariateStatistic;
+import 
org.apache.commons.math4.stat.descriptive.StorelessUnivariateStatisticAbstractTest;
+import org.apache.commons.math4.stat.descriptive.UnivariateStatistic;
+import org.apache.commons.math4.stat.descriptive.moment.Mean;
 import org.junit.Assert;
 import org.junit.Test;
 

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