See ?terms On Mon, Mar 22, 2010 at 2:08 PM, <rkevinbur...@charter.net> wrote: > I noticed that when I fit a linear model using 'lm' there is an attribute > called "factors" that is added to the "term". It doesn't seem to appear for > 'model.matrix', just 'lm'. I have been unable to find where it gets > constructed or what it means? It looks like a two dimensional array that I > may be able to use so I would just like to get some 'official' statement > regarding what it is and how it is constructed. I would rather not go on my > assumptions. An example would be like: > >> l <- lm(prestige ~ income + education, data=Duncan) >> attr(l$terms,"factors") > income education > prestige 0 0 > income 1 0 > education 0 1 > > Thank you. > > Kevin Burton > rkevinbur...@charter.net > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >
-- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
