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varcomb
2010 Sep 22
2
speeding up regressions using ddply
Hi,
I have a data set that I'd like to run logistic regressions on, using
ddply to speed up the computation of many models with different
combinations of variables. I would like to run regressions on every
unique two-variable combination in a portion of my data set, but I
can't quite figure out how to do using ddply. The data set looks like
this, with "status" as