See the recent discussion about is.na() on this list. You can do what you want as
> x<-c(1,3,-1,0,4) > is.na(x) = x > 0 > x [1] NA NA -1 0 NA Yulei He <[EMAIL PROTECTED]> writes: > Hi, there. > > Can I ask how to set up missing values in R? Suppose I want to assign the > missing value to the elements in vector which is greater than zero like > this: > > x<-c(1,3,-1,0,4); > > after the missing value assignment, x becomes (NA,NA,-1,0,NA). ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
