On 16/02/2009, at 8:36 AM, 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.
Can anyone give me another way to compute the transpose in R?
No. That's the only way. :-)
(1) I have no problem doing your example (on Mac OS X).
(2) The error is weird in that you passed the argument ``1:30'' to
matrix()
not to t(). Something is corrupted in your system. What
happens when
you just type ``a'' (rather than t(a)) after creating a? What
happens
when you type ``t'' (no parentheses) and ``matrix'' (no
parentheses)?
(3) Possibly you have a workspace that is corrupted in some way. Try
starting
R with the --no-restore-data flag and see what happens. Or
move .RData
to (say) ``save.RData'' before you start R, and see what happens.
(4) Good luck!
cheers,
Rolf Turner
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