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2009 Jul 12
2
strata -- really slow performance
I'm a bit confused why the following command is taking an extrodinarily
long time (> 2-3 hours) to run on an 3.06ghz iMac (brand new). I'm
trying to do a stratified random sample, drawing only a single value per
UniqueID from the patch_summary data frame:
uniqueids <- unique(patch_summary$UniqueID)
uniqueids_stratasize <- c(1:length(uniqueids))*0+1