[R] question

Armelini, Guillermo DOCGArmelini at iese.edu
Wed Dec 19 18:20:32 CET 2007

Hello everyone!
Is anybody can help me to solve this silly question that unfortunately I haven't found the right way to address it.
Supose I have a matrix X[n,n] dimension
I would like to calculate the product of the vectors
Then I would like to run the following operation
H=if(Y>0) {H[,1]=1}
The problem is that the condition "if" works only for the first element of the matrix.
Does anybody knows how to apply the conditional "if" to a entire vector?

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