R annoyances
(a) There is 'stable.apply' in S Poetry that looks to me like it should work in R, but I haven't tested it. Patrick Burns Burns Statistics patrick at burns-stat.com +44 (0)20 8525 0696 http://www.burns-stat.com (home of S Poetry and "A Guide for the Unwilling S User")
Chalasani, Prasad wrote:
Dear R Folks, I'm a big fan of R, but there are a couple of things that repeatedly annoy me, and I wondered if anyone has neat ways to deal with them. (a) When using "apply" row-wise to a matrix, it returns the results column-wise, and to preserve the original orientation, I've to do a transpose. E.g. I've to keep doing a transpose, which I consider to be quite annoying. transformed.mtx <- t(apply( mtx, 1, exp)) (b) When extracting 2 or more columns of a matrix, R returns the result as a matrix, BUT when extracting just one column, it returns a vector/array, rather than a matrix, so I've to keep doing as.matrix, which is annoying. sub.mtx <- as.matrix(mtx[,1]) Of course I could write a suitable function cols <- function(mtx,range) as.matrix(mtx[, range]) but then I lose the syntactic sugar of being able to say "[,1]".
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