Greetings: I am looking for a way to avoid using the ifelse function for constructing a new variable. More specifically, assume I have a set of variables with scores ranging from 1 to 30.
set.seed(12345) x <- c(1:30) x1 <- sample(x, 15, replace = TRUE) x2 <- sample(x, 15, replace = TRUE) x3 <- sample(x, 15, replace = TRUE) x4 <- sample(x, 15, replace = TRUE) I want to construct a dichotomous variable that tests whether any of the variables contains the value 1. newVar <-ifelse(x1 == 1 | x2 == 1 | x3 == 1 | x4 == 1, 1, 0) I want to avoid the ifelse function because I have a number of large variable lists that will require new variables to be created. I'm sure there is a simple way to do this, but I haven't had any luck with my search! Thanks in advance. Brian ______________________________________________ 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.
