When I click on the documentation link ( at http://commons.apache.org/proper/commons-math/apidocs/index.html <http://commons.apache.org/proper/commons-math/apidocs/index.html> ) for ParameterValidator in the fitting.leastsquares package I get:
The requested URL /proper/commons-math/javadocs/api-3.4/org/apache/commons/math3/fitting/leastsquares/ParameterValidator.html was not found on this server. Bruce