And it could be that you should try nlmrt or minpack.lm.
I don't think you were at my talk in Jena May 23 -- might have been very
helpful to you.
JN
On 13-06-20 06:00 AM, r-help-requ...@r-project.org wrote:
Message: 47
Date: Wed, 19 Jun 2013 13:17:29 -0500
From: "Adams, Jean"<jvad...@usgs.gov>
To: pakoun<pko...@bgc-jena.mpg.de>
Cc: R help<r-help@r-project.org>
Subject: Re: [R] nls singular gradient ..as always..
Message-ID:
<CAN5YmCEF9Ut5J-Zqh6URYOn0bfH=M=cugmgdmtzy9owwkrw...@mail.gmail.com>
Content-Type: text/plain
It's hard to say without seeing the data. It could be the data, it could
be the starting values, it could be the model choice.
Jean
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