[R] Re: your mail

[Thomas Lumley]

On Thu, 18 Oct 2001, Jonathan Pietkiewicz wrote:

> Is it possible to set the intercept of a 3rd order
> polynomial fit to zero and compute the R squared value
> of that fit?  I'm having some trouble.
>

summary(lm(y~poly(x,3)-1))
does the fit and gives the r^2 [defined in this case as RSS/sum(y^2)]


	-thomas

Thomas Lumley			Asst. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle

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