Hello,
You don't have a sub-data.frame, what you have is a list, with each
element of that list a df. Try to see, for instance, result[[1]]. This
should be a data.frame corresponding to the first ID.
Rui Barradas
Em 24-06-2013 18:03, matteo escreveu:
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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