[R] a question regarding apply

[Rajarshi Guha]

Hi,
  I have a matrix, m, over whose rows I want to apply a function. I also
have a vector, r, whose length is equal to the rows of m.

The obvious way is:

result <- apply( m, c(1), fun )

However the function call requires the row from m and the corresponding
element of r.

So, I want to pass m[i,] and r[i] to the function.

Currently I use a loop. But can this be modified to use apply (or
related functions)?

Thanks,

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Rajarshi Guha <rxg218 at psu.edu> <http://jijo.cjb.net>
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