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pakorn
2013 Jun 19
1
nls singular gradient ..as always..
Hi all. Sorry for posting again such a topic but I went through previous
posts but couldn't find a solution.
I use the following code to fit an exponential model to my data. I have 4
different datasets. For 3 datasets nls seems to work fine and I have no
error messages. But for 1 dataset I am getting the "world known" singular
gradient error.
xfit.dNEE <-
2013 Jun 20
0
R-help Digest, Vol 124, Issue 21
...ck.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-request at r-project.org wrote:
> Message: 47
> Date: Wed, 19 Jun 2013 13:17:29 -0500
> From: "Adams, Jean"<jvadams at usgs.gov>
> To: pakoun<pkount at bgc-jena.mpg.de>
> Cc: R help<r-help at r-project.org>
> Subject: Re: [R] nls singular gradient ..as always..
> Message-ID:
> <CAN5YmCEF9Ut5J-Zqh6URYOn0bfH=M=cUGMgDmtzy9OwWkrw24A at mail.gmail.com>
> Content-Type: text/plain
>
> It's hard to say...