Re: [R] printing a dataframe by categories

Try this: by(x, x$Form, function(.x)rbind(.x[-3], sum(.x[2]))) On Wed, May 19, 2010 at 6:49 PM, Gerrit Draisma wrote: > I am looking for the following simple question. > I have a data frame with names and numbers, divided in categories. > I would like to produce a text file with page breaks, > l

[R] printing a dataframe by categories

I am looking for the following simple question. I have a data frame with names and numbers, divided in categories. I would like to produce a text file with page breaks, listing the names and numbers by category, and totalling the numbers. Example: Name<-LETTERS[1:6] Score<-rep(5:8,length.out