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Re: help!

From: Jordi Gutiérrez Hermoso
Subject: Re: help!
Date: Wed, 1 Aug 2007 14:34:32 -0500

Please keep the conversation on the list, so that others may participate.

On 01/08/07, address@hidden <address@hidden> wrote:
>        Thank you for your reply. I have tried using S-PLUS, which is the
> programme R is a clone of, however its non linear optimisation requires
> starting values.

Just like Octave isn't Matlab, R isn't S (in fact, I've heard more
comments about R being better than S than the other way around). Try
checking it out anyways. It might help.

As for an initial point for nonlinear optimisation, that's just the
way it is. Optimisation is just hard, period. I can't think of any
nonlinear optimisation method that doesn't require an initial guess of
some sort. I'm sure they exist, but they just seem less common.

- Jordi G. H.

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