[R] Trying to avoid a loop

[Thomas Lumley]

On Tue, 23 Jan 2001, Michael Roberts wrote:

> 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.
> 

apply(z,c(1,2),max)

	-thomas

Thomas Lumley			Asst. Professor, Biostatistics
tlumley at u.washington.edu	University of Washington, Seattle

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