you need to think how to explain your
results.
John Nash
From: "Douglas Bates" <[EMAIL PROTECTED]>
Subject: Re: [R] error in function: nls (urgent)
To: tedzzx <[EMAIL PROTECTED]>
Cc: r-help@r-project.org
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain
On Tue, Nov 18, 2008 at 6:19 AM, tedzzx <[EMAIL PROTECTED]> wrote:
> Hi,all:
> I am running a nonlinear regression and there is a problem.
Yes. The problem is that there is a singular gradient matrix at the
initial parameter estimates. You will need to modify your function or
your initial param
Hi,all:
I am running a nonlinear regression and there is a problem.
There is a data frame: data
p s x t
1 875.0 12392.5 11600 0.06967213
2 615.0 12332.5 12000 0.06967213
3 595.0 12332.5 12000 0.06967213
4 592.5 12337.0 12000 0.06967213
5 650.0 12430.0 12000 0.06967213
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