Marco Blanchette <mblanche at="" berkeley.edu=""> writes:
> Dear all,
>
> Again, I have one more question that will sound very basic to you R
> aficionados.
Consider sending this sort of question to R-help as it has nothing
BioC specific...
> I have a list of several columns containing different number of
items as in:
>
> aList = list(C1=c(1:10), C2=c(15:35))
Are all elements the same length? If not, is the assumption that you
want to pad the end of short vectors with NA?
We'll use a helper from Biobase to make this BioC specific ;-)
library("Biobase")
length(unique(listLen(aList))) == 1
You could make a matrix like this:
mat <- do.call(cbind, aList)
write.table(mat)
If lengths are not equal...
lens <- listLen(aList)
nRows <- max(lens)
bList <- lapply(aList, function(x) {
if (length(x) != nRows)
c(x, rep(NA, nRows - length(x)))
else
x
})
+ seth
