[R] Split matrix into square submatices

xiddw xiDDdw at gmail.com
Fri Feb 10 18:23:53 CET 2012

Thanks to Peter and Gabriel for their comments,

The first way which Peter commented was my first approach, however as I use
it for a 'large' matrix (in my case nrow = ncol = 512) and I want to split
it into very small matrices (e.g. nrow = ncol = {4, 8, 16}) both nested
loops I think are a quite expensive and that's why I was looking for a
better way.

The Gabor's approach works perfect for my needs, thanks :)

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