i'm trying to build a little summary table for the contents of a data frame.
t<-sapply(macro, data.class)
c<-sapply(macro, length)
m<-sapply(macro, mean, na.rm=T, digits=2)
cbind(type=t, n=c , mean=m)
I want to drop the variables that are factors so I can include -max- and
-min- in my table.
-macro- contacts the data--how do I drop the variables according to their
data.class
thanks,
michael foster
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