Hi Tom,

Take a look at the following taken/modified from ?lm:

ctl <- c(4.17,5.58,5.18,6.11,4.50,4.61,5.17,4.53,5.33,5.14)
trt <- c(4.81,4.17,4.41,3.59,5.87,3.83,6.03,4.89,4.32,4.69)
group <- gl(2,10,20, labels=c("Ctl","Trt"))
weight <- c(ctl, trt)
lm.D9 <- lm(weight ~ group)
slm <- summary(lm.D9)
str(slm)
slm$r.squared

Best regards,
Jorge


On Mon, Dec 14, 2009 at 5:20 PM, Tom Pitt <> wrote:

>
> Hi All,
>
> After I run the lm function, where (which variable) do I find my R-squared
> for further calculations?
>
> Thanks,
> Tom
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