Will not just apply(mydf, 2 table) give you what you want in a list format?
--- [EMAIL PROTECTED] wrote: > Dear list, > > I have a data.frame with nine categorical variables > (0,1,2 and NAs) > that I would like to get the number of events for > each of them. I can > extract this using summary() for each variable at a > time with the > as.factor()argument (otherwise it will get me the > mean value): > > >summary(as.factor(mydf[,3])) > 0 1 2 NA's > 194 67 4 2 > > Trying to use apply() to get this for all the > columns of the > data.frame I cannot use as.factor because it works > with vectors and > not data.frames. > > Can anyone help me? Maybe a for loop would be good > in this case > instead, although I learnt that for loops are not > recommended? > > Thanks in advance, > > David > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, > reproducible code. > Looking for the perfect gift? Give the gift of Flickr! ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
