[R] extracting submatrix from a bigger one

[David Winsemius]

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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David Winsemius
Alameda, CA, USA