On Apr 16, 2010, at 11:16 AM, KDT wrote:
Thanks Ista Works well
You might also get further value from reviewing the various describe functions (there must be 5 or six packages with different versions). The Hmisc::descibe works very well for me and would have given you tabular counts for discrete variables and means, and quantiles for numerics.
I also suspect that the data.frame(...) call around aggregate was superfluous, since the help page for aggregate says that its dataframe method returns a dataframe.
Trevor --
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