[R] R annoyances

Patrick Burns pburns at pburns.seanet.com
Thu May 19 21:12:05 CEST 2005

(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
(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]".
>R-help at stat.math.ethz.ch mailing list
>PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

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