Re: [R] displaying derived coefficients in lm

2011-05-11 Thread Greg Snow
ce > Sent: Wednesday, May 11, 2011 5:43 AM > To: r-help@r-project.org > Subject: [R] displaying derived coefficients in lm > > Hello R-help, > > Is there a way to get R to tell you the coefficients in a lm that it > wouldn't normally tell you because of identifiability c

[R] displaying derived coefficients in lm

2011-05-11 Thread James Lawrence
Hello R-help, Is there a way to get R to tell you the coefficients in a lm that it wouldn't normally tell you because of identifiability constraints? For instance, if you use contr.sum() to generate contrasts for a factor, say ## y <- some data ## x <- a factor with levels 1:6 contrasts(x) <-