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Re: [Bug-gsl] levy skew alpha-stable distribution documentation mis-plot

From: Brian Gough
Subject: Re: [Bug-gsl] levy skew alpha-stable distribution documentation mis-plot?
Date: Thu, 05 Feb 2009 15:03:51 +0000
User-agent: Wanderlust/2.14.0 (Africa) Emacs/22.2 Mule/5.0 (SAKAKI)

At Mon, 2 Feb 2009 01:52:41 -0500,
dorkusmonkey wrote:
>   On p. 218 for my copy of the gsl reference, chapter 19.13 "The Levy
> skew alpha-Stable Distribution" I noticed that the plot of the
> probability distribution function, p(x), (for alpha=1.0, beta=1.0,
> scale=1.0) has a maximum at around y=0.06 or so.  I have estimated the
> pdf myself and have found the peak for the same parameters to be
> nearer to 0.3.  Are you sure that the plot of the pdf (p(x)) is
> correct?

Thanks for the email.  You're correct, comparing it against a
histogram of random variates shows the same difference---I must have
generated the plot with different parameters from the ones in the
title.  I will regenerate it for the next release.

Brian Gough
(GSL Maintainer)

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