[R] ifelse()

Ko-Kang Kevin Wang kwan022 at stat.auckland.ac.nz
Wed Mar 26 12:20:04 CET 2003


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



/* Time is the greatest teacher, unfortunately it kills its students */

Ko-Kang Kevin Wang
Master of Science (MSc) Student
SLC Tutor and Lab Demonstrator
Department of Statistics
University of Auckland
New Zealand
Homepage: http://www.stat.auckland.ac.nz/~kwan022
Ph: 373-7599
    x88475 (City)
    x88480 (Tamaki)

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