Re: [R] Different output for lm Mac vs PC

he Mac, as Greg noted. > >Regards, > >Marc > > >On Jan 14, 2014, at 3:55 PM, Greg Snow <538...@gmail.com> wrote: > >> I would suggest running the code: >> >> options('contrasts') >> >> on both machines to see if there is a dif

[R] Different output for lm Mac vs PC

I've noticed that I get different output when running a linear model on my Mac versus on my PC. Same effect, but the Mac assumes the predictor as a 0 level whereas the PC uses the first category (alphabetically). So for example (using Bodo Winter's example from his online linear models tutorial