matrix transpose
Roger wrote:
This is supposed to be an easy operation, but R 2.8.1 on Mac OS X gives me a lot trouble. the t() function simply does not work properly. What I mean is it works sometimes but does not work at the most of the time, even with the same matrix. this is an example taken from R help
a <- matrix(1:30, 5,6)
t(a)
Error in t(a) : unused argument(s) (1:30) It just gives this error. If I restart my Mac (Yeah, have to restart the OS), then there are chances t() works, but sometimes it still does not work.
does it ever fail if you try the example in a fresh r session (i.e., one without anything executed before this code)? when it fails, what is t? have you redefined t to be some other function, in particular, a no-argument one, as here: t = function() NULL a = matrix(1:30, 5, 6) t(a) # Error in t(a) : unused argument(s) (1:30) this is most likely what happens here. vQ