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[Help-gsl] Nelder and Mead

From: Mario dos Reis
Subject: [Help-gsl] Nelder and Mead
Date: Fri, 19 Sep 2008 11:22:43 +0100
User-agent: Thunderbird (X11/20071019)

Did you optimize your code using Nelder and Mead? i.e.

gcc myprogram myprogram.c -O4 -DHAVE_INLINE=1 -DGSL_RANGE_CHECK=0 \
-lgslcblas -lgsl

Message: 3 Date: Wed, 17 Sep 2008 18:40:05 +0100 From: Brian Gough <address@hidden> Subject: Re: [Help-gsl] Nelder-Mead Simplex algorithm To: Tania Regimbau <address@hidden> Cc: address@hidden Message-ID: <address@hidden> Content-Type: text/plain; charset=US-ASCII At Fri, 12 Sep 2008 20:15:10 +0200, Tania Regimbau wrote:
> > I used the implementation of the GSL Nelder Mead Simplex algorithm to
> > minimize a 3 variable function and it doesn't seem to perform very
> > well compared to the Matlab function fmeansearch based on the same
> > algorithm. Can someone tell me what the difference is between the two?
> > I thought I was using the same precision parameters but I may have
> > missed something.

I'm not aware of any major difference -- could you submit a bug report
to address@hidden with an example program and the output compared
with MATLAB. Thanks.

-- Brian Gough

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