On Tue, Jul 1, 2014 at 1:27 PM, Erin Hodgess <erinm.hodg...@gmail.com> wrote:
> Hello R People:
>
> I'm having a forest/trees location problem with the output of nls.
>
> If I save the output to an object, and print the object, it shows, amongst
> other things, the residual sum of squares. I would like to get that.
>
> However, when I look at names or str of the object, I can't find the
> residual sum of squares.
I think you want to look at summary(object), which contains (see
help("summary.nls"))
sigma: the square root of the estimated variance of the random error
sigma^2 = 1/(n-p) Sum(R[i]^2),
where R[i] is the i-th weighted residual.
In other words, you probably want summary(object)$sigma^2*(n-p),
perhaps a square root of it, or maybe just the sigma.
HTH,
Peter
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
