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snew
2002 Jun 11
2
Puzzled by what Rprof is telling me
...ed to apply a function, sfun(),
to each of 4191 subsets of rows, indexed by indat$grpi. sfun() is
fairly complex, and requires information from all of the columns of
inmat, so simple uses of, for example, aggregate() don't do the job.
Rprof('Rpf3n')
for (i in unique(indat$grpi)) {
ssnew[i,] <- sfun(inmat[indat$grpi==i,,drop=FALSE])
}
Rprof(NULL)
----------------- Rprof output, v1 ----------------
Each sample represents 0.02 seconds.
Total run time: 404.999999999922 seconds.
Total seconds: time spent in function and callees.
Self seconds: time spent in function alone.
%...