Good day, How is it possible to get a data.frame of factor levels used for obtaining each element of the result of the by function ? For example,
result <- by(warpbreaks[, 1], warpbreaks[, -1], summary) > result wool: A tension: L Min. 1st Qu. Median Mean 3rd Qu. Max. 25.00 26.00 51.00 44.56 54.00 70.00 ... I'd like to obtain a data.frame of the two columns, wool and tension, specifying the level of each factor that corresponds to each element of result. -------------------------------------- Dario Strbenac PhD Student University of Sydney Camperdown NSW 2050 Australia ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
