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Andrew Waterman edited comment on MATH460 at 4/30/12 12:31 AM:

I've been able to sample what looks to be a proper a Levy Distribution using the TDistribution
(student's) in R with the following code:
> N< 100
> distributionvector< rt(N,df=2)
[modified from http://zoonek2.free.fr/UNIX/48_R/07.html]
When graphed as an XY, I'm able to plot what looks to be a "Levy Flight" (see citation for
details) as used in ecological modeling. This could serve as the basis to implement the mathematical
expectations for the missing unit tests (with a shared random seed).
was (Author: awaterma):
I've been able to sample what looks to be a proper a Levy Distribution using the TDistribution
(student's) in R with the following code:
> N< 100
> distributionvector< rt(N,df=2)
[modified from http://zoonek2.free.fr/UNIX/48_R/07.html]
When graphed as an XY, I'm able to plot what looks to be a "Levy Flight" (see citation for
details) as used in ecological modeling. This could serve as the basis to implement the mathematical
expectations for the missing unit tests.
> Levy Distribution
> 
>
> Key: MATH460
> URL: https://issues.apache.org/jira/browse/MATH460
> Project: Commons Math
> Issue Type: New Feature
> Reporter: Pavel Ryzhov
> Priority: Minor
> Fix For: 3.1
>
> Attachments: levy_math_460.patch
>
>
> Pretty straightforward implementation of Levy Distribution (not Levy alphastable) according
to http://en.wikipedia.org/wiki/Lévy_distribution.

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