Hello, I'm using SPSS at work but really would like to switch to R. Right now I'm trying to learn R in reproducing calculations I did with SPSS but am stuck with something that is quite simple and comprehensible in SPSS-Syntax:
IF (variable1.fac = 0 AND variable2.num = 0) variable3=1. IF (variable1.fac = 0 AND variable2.num >= 1) variable3=2. IF (variable1.fac = 1 AND variable2.num = 0) variable3=3. IF (variable1.fac = 1 AND variable2.num >= 1) variable3=4. I want to create four different groups out of different conditions of two variables: * variable1.fac is a factor coded with 0 and 1 * variable2.num is a numerical variable with only whole numbers My problem with R is that I can't find a way to use AND in an IF statement that doesn't produce an error or not intended solutions. "An Introduction to R" is really unhelpful with this problem and I wouldn't have written here, if I didn't have searched for the answer. http://tolstoy.newcastle.edu.au/R/help/05/09/12136.html was helpful in understanding how the IF statement is written in R but didn't answer my question how to add an usable AND (&, |) https://stat.ethz.ch/pipermail/r-help/2008-November/178808.html looked promising but didn't do what I had intended Thanks in advance, Richard [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.