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2006 Oct 10
2
rarefy a matrix of counts
Hi all, I have a matrix of counts for objects (rows) by samples (columns). I aimed for about 500 counts in each sample (I have about 80 samples) and would now like to rarefy these down to 100 counts in each sample using simple random sampling without replacement. I plan on rarefying several times for each sample. I could do the tedious looping task of making a list of all objects (with its