Hello, ifelse checks condition whether X (or, ina fact every value in X) is greater than 0. If it is 1 is assigned and if it isn't then 0.
2 and 1 are greater than 0, therefore the first four values of Y are 1. 0 isn't greater than 0, therefore the last two values of Y are 0. 2009/2/10 kayj <kjaj...@yahoo.com> > > I have a problem with ifelse(), I do not understand how it works. > > > X<-c(2,2,1,1,0,0) > > str(X) > num [1:6] 2 2 1 1 0 0 > > Y<-ifelse(X>0,1,0) > > Y > [1] 1 1 1 1 0 0 > > > > Can some one explain what is going on, I do not understand what ifelse is > doing in this case. Can someone explain the output Y. > > Thanks > > -- > View this message in context: > http://www.nabble.com/ifelse%28%29-tp21943308p21943308.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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<http://www.r-project.org/posting-guide.html> > and provide commented, minimal, self-contained, reproducible code. > [[alternative HTML version deleted]] ______________________________________________ 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.
