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[S] non-linear least squares

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Subject: [S] non-linear least squares
From: Miles Harkness <mharknes@laurel.ocs.mq.edu.au>
Date: Tue, 22 Jun 1999 14:13:36 +1000 (EST)
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Dear S-news subscribers,

I am trying to use S-plus to carry out some non-linear least squares
estimation.  I am trying to minimise a function

sum a^2

using the function ms.  I encounter some difficulties though as whenever I
set the function running I get the error message

FALSE CONVERGENCE

I can't find out what this means anywhere so can't work out what I'm doing
wrong or what I should do instead.

Any advice would br gratefully received.

Thanks in advance

Miles Harkness

*******************************************************
Miles Harkness            mharknes@laurel.ocs.mq.edu.au
Macquarie University      +61 (02) 9850 8564 (office)
Sydney                    +61 (02) 9460 2182 (home)
*******************************************************

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