On 7/20/2005 9:54 AM, [EMAIL PROTECTED] wrote:
> Hi,
>
> I would like to add a prefix to colnames in a matrix but I can't get the
> prefix
> option in colnames to work. What am I doing wrong?
The prefix argument is only used when there are no names and colnames is
generating some. You just want to use paste().
>
>> X<-matrix(NA,3,4)
>> colnames(X)<-c("test","test","test","test")
> colnames(X) <- paste("PREFIX.", colnames(X), sep="")
> X
PREFIX.test PREFIX.test PREFIX.test PREFIX.test
[1,] NA NA NA NA
[2,] NA NA NA NA
[3,] NA NA NA NA
Duncan Murdoch
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