[R] controling omitted category in factor()

toby909 at gmail.com toby909 at gmail.com
Tue Apr 3 00:07:16 CEST 2007

Hi All

How can I specify which category R should omit when running a linear model with 
categorical predictors? I saw it omits the first category by default, but I like 
to have the 3rd category omitted.

Thanks for your hints.


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