extracting submatrix from a bigger one
On Jun 24, 2013, at 10:03 AM, matteo wrote:
Hi,
result <- lapply(unique(dataset$ID), function(uid) dataset[dataset$ID == uid, ])
Ok, I have the element result as a list
names(result) <- unique(dataset$ID)
Nothing happens. I don't have any submatrix...
Matteo
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