Median computation
See rowMedians() of the matrixStats package for replacing apply(x, MARGIN=1, FUN=median). /Henrik
On Tue, May 22, 2012 at 12:34 PM, Preeti <preeti at sci.utah.edu> wrote:
Hi, I have a 250,000 by 300 matrix. I am trying to calculate the median of those columns (by row) with column names that are identical. I would like this to be efficient since apply(x,1,median) where x is created by choosing only those columns with same column name and looping on this is taking a really long time. Is there an efficient way to do this? Thanks! ? ? ? ?[[alternative HTML version deleted]]
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