Re: Lognormal distribution
- From: "Andreas J. Guelzow" <aguelzow pyrshep ca>
- To: gnumeric-list gnome org
- Subject: Re: Lognormal distribution
- Date: Fri, 22 Aug 2008 07:07:26 -0600
On Fri, 2008-08-22 at 12:07 +0200, Jean Bréfort wrote:
Hi,
Our Lognormal distribution support does not have a shape parameter as
described at
http://www.itl.nist.gov/div898/handbook/eda/section3/eda3669.htm
Is that correct or a gnumeric bug (or a R-project bug)?
Note from the same page:
Since the general form of probability functions can be expressed in
terms of the standard distribution, all subsequent formulas in this
section are given for the standard form of the function.
So both the m (shape parameter) and theta are unnecessary. We apparently
chose to include theta but not m.
SO I don't see a bug anywhere.
Andreas
--
"Liberty consists less in acting according to
one's own pleasure, than in not being subject
to the will and pleasure of other people. It
consists also in our not subjecting the wills
of other people to our own." Rousseau
Andreas J. Guelzow
Pyrenean Shepherds
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