Sergio Della Franca wrote: > Dear R-Helpers, > > I have this dataset: > > YEAR PRODUCTS cluster > 1 10 2 > 2 42 3 > 3 25 2 > 4 42 3 > 5 40 3 > 6 45 1 > 7 44 1 > 8 47 1 > 9 42 1 > > > I want to create a subset (when cluster=1), > > YEAR PRODUCTS cluster > 6 45 1 > 7 44 1 > 8 47 1 > 9 42 1 > > > How can i perform this? > >
You've answered your own question! ?subset e.g., subset(my.data, cluster==1) You should also notice that many R functions support a subset= parameter, which is very useful! Mark -- Dr. Mark Wardle Specialist registrar, Neurology Cardiff, UK ______________________________________________ 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 and provide commented, minimal, self-contained, reproducible code.
