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
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