[R] a nls question

Jean Eid jeaneid at chass.utoronto.ca
Wed Feb 2 22:05:23 CET 2005


as.vector(coef(nlsobj))
as.vector(resid(nlsobj))



On Wed, 2 Feb 2005, Chung Chang wrote:

> Hi,
>    I have a question about how to get the residuals and estimations
> of the parameters in my program.
> For example,
> x<-c(1,2,3,4,5,6)
> y<-c(2.9, 1.24, 1.71, 2.989358, 1.455979, 1.4)
> nls(y ~ a+sin(b*x),start=list(a=2.2,b=1.8),trace=TRUE)
> I can get the estimation of a, b and residuals from the output but I
> need them to be vectors in order to do futhur calculations in a
> program. Is there any options for this function nls similar to
> lm$coefficients and lm$residuals which I can get vectors of
> estimation and residuals?
> Thanks very much for your help
>
> Chung
>
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