consider a cutpoint of 20 x<-runif(100, min=1, max=50) as.integer(x > 20)
Stefano > -----Messaggio originale----- > Da: Doran, Harold [mailto:[EMAIL PROTECTED] > Inviato: mercoled� 7 luglio 2004 14.57 > A: [EMAIL PROTECTED] > Oggetto: [R] Creating Binary Outcomes from a continuous variable > > > Dear List: > > > > I have searched the archives and my R books and cannot find a > method to > transform a continuous variable into a binary variable. For example, I > have test score data along a continuous scale. I want to create a new > variable in my dataset that is 1=above a cutpoint (or passed the test) > and 0=otherwise. > > > > My instinct tells me that this will require a combination of the > transform command along with a conditional selection. Any help is much > appreciated. > > > > Thanks, > > Harold > > > [[alternative HTML version deleted]] > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
