[R] Calling on certina columns

2012-05-23 Thread Chris Burns
I'm trying to run a regression on certain columns. The columns are named Cat_1, Cat_2 etc. Is there a way to call upon all of the columns that contain Cat? Thanks, Chris [[alternative HTML version deleted]] __ R-help@r-project.org mailing

Re: [R] Calling on certina columns

2012-05-23 Thread David Winsemius
On May 23, 2012, at 5:47 PM, Chris Burns wrote: I'm trying to run a regression on certain columns. The columns are named Cat_1, Cat_2 etc. Is there a way to call upon all of the columns that contain Cat? lm( y ~ . , data=dfrm[, c(y, grep(Cat, names(dfrm), value=TRUE) ] ) OR: lm (y ~