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Thomas Neidhart edited comment on MATH968 at 4/25/13 6:39 AM:

Please find attached a patch that adds support for the Pareto distribution.
The test values have been created with R (cran module VGAM contains a pareto distribution),
although there seems to be a small bug in the module as the density for x == scale/k is returned
as 0.
Looking at the wikipedia page or wolfram (http://reference.wolfram.com/mathematica/ref/ParetoDistribution.html)
you can see that for this case the density should be <> 0. So I adapted the test values
for this case.
was (Author: tn):
Please find attached a patch that add support for the Pareto distribution.
The test values have been created with R (cran modules VGAM contains a pareto distribution),
although there seems to be a small bug in the module as the density for x == scale/k is returned
as 0.
Looking at the wikipedia page or wolfram (http://reference.wolfram.com/mathematica/ref/ParetoDistribution.html)
you can see that for this case the density should be <> 0. So I adapted the test values
for this case.
> Pareto distribution is missing
> 
>
> Key: MATH968
> URL: https://issues.apache.org/jira/browse/MATH968
> Project: Commons Math
> Issue Type: New Feature
> Affects Versions: 3.2
> Reporter: Alex Gryzlov
> Priority: Minor
> Attachments: MATH968.zip
>
>
> Seems that org.apache.commons.math3.distribution lacks a ParetoDistribution for some
reason. This is a real common type of distribution, so providing it would be very nice!

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