[R] Anova() type iii SS plots and diagnostics

Fox, John jfox at mcmaster.ca
Tue Jul 19 14:41:51 CEST 2016


Dear Pamela,

I'm afraid that this question seems confused. Type III sums of squares are computed for a linear model -- it's the *linear model* that you'd check, in the usual manner, for outliers, etc., and this has nothing to do with how the ANOVA table for the model is computed.

Best,
 John

-----------------------------
John Fox, Professor
McMaster University
Hamilton, Ontario
Canada L8S 4M4
Web: socserv.mcmaster.ca/jfox



> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Pamela
> Wong
> Sent: July 18, 2016 10:39 PM
> To: r-help at r-project.org
> Subject: [R] Anova() type iii SS plots and diagnostics
> 
> I am wondering if there is a way to plot results and model diagnostics (to check
> for outliers, homoscedasticity, normality, collinearity) using type III sums of
> squares in R ______________________________________________
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