Well... did you look at the help page on factors??? Did you even make a search? The answer is within your question: > levels(iris[,5]) [1] "setosa" "versicolor" "virginica" Eric > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Muhammad Subianto > Sent: mercredi 27 avril 2005 14:22 > To: R-help@stat.math.ethz.ch > Subject: [R] Take a levels > > > Dear all, > How can I take a levels from a dataset. > For example, > > data(iris) > x.iris <- iris[,1:4] > y.iris <- iris[,5] > > y.iris > [1] setosa setosa setosa setosa setosa setosa > [7] setosa setosa setosa setosa setosa setosa > .... > [139] virginica virginica virginica virginica virginica > virginica [145] virginica virginica virginica virginica > virginica virginica > Levels: setosa versicolor virginica > > I want like, > y.iris level are, > [] setosa versicolor virginica > > Best regards, > Muhammad Subianto > > ______________________________________________ > R-help@stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html