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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
...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 without s...