Re: [R] ANCOVA

From: Ramon Diaz-Uriarte <rdiaz02_at_gmail.com>
Date: Sat 06 Jan 2007 - 19:35:22 GMT

On 1/6/07, Michael Kubovy <kubovy@virginia.edu> wrote:
> On Jan 6, 2007, at 8:34 AM, John Cardinale wrote:
>
> > Are there any R function which can do analysis of covariance?
>
> ?lm
> RSiteSearch('ancova')

Given the question, you'll probably need to find "how to do an ancova with lm". Several documents in
http://cran.r-project.org/other-docs.html will show you how (and why ancova is just one special case of linear model). In particular, I think Faraway's "Practical regression and Anova using R" has explicit chapters/sections for Ancova. Many of other standard texts on R/S do too.

R.

> _____________________________
> Professor Michael Kubovy
> University of Virginia
> Department of Psychology
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-- 
Ramon Diaz-Uriarte
Statistical Computing Team
Structural Biology and Biocomputing Programme
Spanish National Cancer Centre (CNIO)
http://ligarto.org/rdiaz

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Received on Sun Jan 07 06:38:41 2007

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