Given

x <- c(3,2,4,3,5,4,3,2,4,5)

y <- c("A","B","B","A","A","A","A","B","A","B")

xy <- cbind(x,y)

and am wanting to create a new variable "w" where if y=="A" then w==x*10 else w==x*15 such that I end up with a dataframe

x y w

[1,] 3 "A" 30

[2,] 2 "B" 30

[3,] 4 "B" 60

[4,] 3 "A" 30

[5,] 5 "A" 50

[6,] 4 "A" 40

[7,] 3 "A" 30

[8,] 2 "B" 30

[9,] 4 "A" 40

[10,] 5 "B" 75

ifelse, if then, or for loop

Jeff

______________________________________________

[hidden email] mailing list -- To UNSUBSCRIBE and more, see

https://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide

http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code.