Hi listers, I am trying to arrange my data and I didn't find any information how to do it! I have a data with 3 variables: X Y Z 1-I would like to multiplicate de information of X according to the number I have for my Y variable... 2-Then I want to identify with a dicotomic variable by the number according my variable Z from X... I can do the first part by... z<-rep(x,y) But I don't know how to set a dicotomic variable according to Z... Exemple... I have... X Y Z 123 3 1 234 3 1 345 4 2 456 3 2 I want to get... X Y Z 123 3 1 123 3 0 123 3 0 234 3 1 234 3 0 234 3 0 345 4 1 345 4 1 345 4 0 345 4 0 456 3 1 456 3 1 456 3 0
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