"subset" will do the selection. If you really want a matrix for the result you will need to coerce it using "as.matrix".
Roger Levy <[EMAIL PROTECTED]> writes: > I have a simple question about matrix/data frame manipulation. I have > a data frame that looks a something like this > > X Y Z > 1 0 "apples" > -1 -1 "oranges" > ... > 0 -1 "bananas" > > and I'd like to pull out all the rows for which X and Y are (un)equal > into a submatrix. > > How can I do that? > > Many thanks, > > Roger Levy ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
