Re: [R] Quality of fit statistics for NLS?

2012-01-27 Thread John C Nash
0:58:04 +0100 > From: peter dalgaard > To: Bert Gunter > Cc: Max Brondfield , r-help@r-project.org > Subject: Re: [R] Quality of fit statistics for NLS? > Message-ID: > Content-Type: text/plain; charset=windows-1252 > > > On Jan 26, 2012, at 22:51 , Bert Gunter wrote:

Re: [R] Quality of fit statistics for NLS?

2012-01-27 Thread peter dalgaard
On Jan 26, 2012, at 22:51 , Bert Gunter wrote: > Inline below. > > -- Bert > > On Thu, Jan 26, 2012 at 12:16 PM, Max Brondfield > wrote: >> Dear all, >> I am trying to analyze some non-linear data to which I have fit a curve of >> the following form: >> >> dum <- nls(y~(A + (B*x)/(C+x)), star

Re: [R] Quality of fit statistics for NLS?

2012-01-26 Thread Bert Gunter
Inline below. -- Bert On Thu, Jan 26, 2012 at 12:16 PM, Max Brondfield wrote: > Dear all, > I am trying to analyze some non-linear data to which I have fit a curve of > the following form: > > dum <- nls(y~(A + (B*x)/(C+x)), start = list(A=370,B=100,C=23000)) > > I am wondering if there is any w

[R] Quality of fit statistics for NLS?

2012-01-26 Thread Max Brondfield
Dear all, I am trying to analyze some non-linear data to which I have fit a curve of the following form: dum <- nls(y~(A + (B*x)/(C+x)), start = list(A=370,B=100,C=23000)) I am wondering if there is any way to determine meaningful quality of fit statistics from the nls function? A summary yields