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st: statsby slowness
.
At what point does one give up using statsby? With just three
variables in my data set,
ssrownum, iso_VSV, expression
the following command does OK with 1000 by groups (< 20 cases in a
group), but is not useable with 20,000 by groups.
statsby n=r(N) spearman=r(rho) p=r(p), by(ssrownum): spearman iso_VSV
expression
Why?
I posted something similar a long time ago compared speeds of ttest
with if versus in and versus regress, but I'm not happy at the moment.
--
David C. Airey, Ph.D.
Research Assistant Professor
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