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simlpe
2002 Aug 09
2
Help with improving efficiency
Dear All,
I have a problem that I think could be solved much more efficiently, but
I don't have a clue how to accomplish this. I have a matrix W with
dimensions k*(p+1):
Let's say W is 5*4 and looks like this:
> W
[,1] [,2] [,3] [,4]
[1,] 1 -1 -1 1
[2,] 1 1 1 1
[3,] 1 2 -2 -1
[4,] 1 0 -1 -1
[5,] 1 -2 -1 0
I want to take