Dear All,
 
another quick question, this one is on skipping part of my code, so let us say:
 
a <-5
b <-2
e <-0
 
d <-a+b
f <-a-b
 
what I would like to do is to have R NOT to calculate the value for d in case the value of e equals to zero (essentially skip that "chunk"), but instead move on to calculate te value for f. In the code I am working with the value of e changes, and I would like to calculate d and f at all times when the value of e is greater then zero. If possible, I would like to do this without using the functions "ifelse" and "if else"
 
appreciate the help,
 
Andras
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