[commons-rng] 03/03: Added missing branch frequencies.

[aherbert]

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aherbert pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/commons-rng.git

commit 4d211d27144e046903f48ed260ee1ca1144c7a85
Author: aherbert <aherb...@apache.org>
AuthorDate: Fri Jul 9 10:44:42 2021 +0100

    Added missing branch frequencies.
---
 .../rng/sampling/distribution/ZigguratNormalizedGaussianSampler.java    | 2 ++
 1 file changed, 2 insertions(+)

diff --git 
a/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/ZigguratNormalizedGaussianSampler.java
 
b/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/ZigguratNormalizedGaussianSampler.java
index 1d1acb2..db3c8c6 100644
--- 
a/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/ZigguratNormalizedGaussianSampler.java
+++ 
b/commons-rng-sampling/src/main/java/org/apache/commons/rng/sampling/distribution/ZigguratNormalizedGaussianSampler.java
@@ -107,6 +107,7 @@ public class ZigguratNormalizedGaussianSampler
         final long j = rng.nextLong();
         final int i = ((int) j) & LAST;
         if (Math.abs(j) < K[i]) {
+            // This branch is called about 0.972101 times per sample.
             return j * W[i];
         }
         return fix(j, i);
@@ -152,6 +153,7 @@ public class ZigguratNormalizedGaussianSampler
         // This branch is called about 0.027323 times per sample.
         final double x = hz * W[iz];
         if (F[iz] + rng.nextDouble() * (F[iz - 1] - F[iz]) < pdf(x)) {
+            // This branch is called about 0.014961 times per sample.
             return x;
         }
         // Try again.