[R] Trying to avoid a loop

[Chong Gu]

   Date: Tue, 23 Jan 2001 17:37:31 -0500
   From: Michael Roberts <mroberts at ers.usda.gov>
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   Hello:

   Although I could write a loop to do the following, I would like
   to avoid this as it would be expensive.  Does anyone know if
   there is an R function that would make this faster?

   Given a 3 dimensional array, say Z with dimensions {n,l,k},  I would
   like to create a matrix Y with dimensions {n,l}, each element of which
   contains the position {k} with the largest element that dimension.

   Many thanks,
   Michael Roberts



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apply(z,c(1,2),function(x) rev(order(x)))
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