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_den
2007 May 25
1
Speeding up resampling of rows from a large matrix
I'm trying to:
Resample with replacement pairs of distinct rows from a 120 x 65,000
matrix H of 0's and 1's. For each resampled pair sum the resulting 2
x 65,000 matrix by column:
0 1 0 1 ...
+
0 0 1 1 ...
_______
= 0 1 1 2 ...
For each column accumulate the number of 0's, 1's and 2's over the
resamples to obtain a 3 x 65,000 matrix G.
For those