On Wed, Mar 26, 2003 at 11:20:04PM +1200, Ko-Kang Kevin Wang wrote: > Hi, > > I'm not sure if this can be done but.. > > I know that with ifelse() I can do something like: > ifelse(x <= 3, 1, 2) > to go through each element in my vector x, and if x_i <= 3 substitute the > number with 1 else with 2. Essentially I'll get a vector with 2 levels. > > Can I tweak it so I can get 3-levels? For example: > if(x <= 3) then 1 > elseif(3 < x <= 4) then 2 > elseif(x > 4) then 3
You can, like this (1 if zz < 5, 2 if 5 <= zz < 10, 3 if zz >= 10) > zz <- 1:20 > ifelse(zz < 5, 1, ifelse(zz < 10, 2,3)) [1] 1 1 1 1 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 Cheers Jason -- Indigo Industrial Controls Ltd. 64-21-343-545 [EMAIL PROTECTED] ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
