Hallo Michael,
check ?matrix and compare to as.matrix.
as.matrix does not provide a ncol argument. To get a 2 by 2 matrix use
matrix(a, ncol=2)
Regards
Adrian
Am 15.04.2011 11:42, schrieb Michael Bach:
Dear R users,
I presume there is something foul with system:
a<- c(1,2,3,4)
as.matrix(a, ncol=2)
Output:
[,1]
[1,] 1
[2,] 2
[3,] 3
[4,] 4
The vignette for as.matrix says nrow (ncol) will be deduced from length
and ncol (nrow). It does not work even when I additionally specify
nrow=2. It behaves as if I had not given the ncol argument. Any hints
on what might be borked up here?
R.Version()$ver
[1] "R version 2.10.1 (2009-12-14)"
Thanks in advance,
Michael Bach
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