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smith2k
2005 May 05
2
efficient filtering of matrices
I was wondering if someone can tell me the best way to search through a
matrix and choose certain rows (based on certain conditions) to put into a
separate matrix.
What I have tried so far is very slow for a large dataset I'm working with.
e.g., I have this piece of code to create a new matrix (newmat) based on my
filtering conditions. Do I need to do this kind of thing where I keep