Karl D. Gierach created MATH-1373:
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             Summary: In LogNormalDistribution.java, it appears shape & scale 
are reversed/mis-labelled.
                 Key: MATH-1373
                 URL: https://issues.apache.org/jira/browse/MATH-1373
             Project: Commons Math
          Issue Type: Bug
    Affects Versions: 3.6.1
            Reporter: Karl D. Gierach
            Priority: Minor


When I compute the logshape and log scale based on the formulas on wikipedia's 
lognormal distribution page that use empirical mean and variance, I found that 
the getNumericalMean() method was not returning the empirical mean.

However, upon just trying to reverse the shape and scale parameters in the 
constructor proved to fix the problem, and the object then returns the correct 
empirical mean.





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