Xin wrote: > Dear All: > > I imported a table into R. But I want to read a variable (y) from this > table conditional on another variable (x=1) in the table. > > y<-data[,7] > x<-data[,3] > > I want to know the mean of y if corresponding x=1. > > I tried > > if (x==1) y3<-y > > It does not work. > > Anyone can give a help?
Is this homework? Please do read the posting guide and An Introduction to R! Uwe Ligges > Thanks! > > > Xin > [[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. ______________________________________________ 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.
