Hi,

I have data such as VAR1 VAR2 VAR3 1 1 1 1 1

I want to do something really simple such as Compute a fourth variable which will give me 1 (if VAR3 is 1 and VAR1 and VAR2 are both missing). I use Transform Compute Target Variable VAR04 Numeric expression 1 if VAR3=1&(VAR1~=1&VAR2~=1)

which gives me missing for all the rows in VAR4 whereas it should give me

VAR4 . . 1

What am I doing wrong, I think I have the logic right. Paul

----------------------------------------------- Paul McGeoghan Application Support Specialist (Statistics and databases support) Information Services Cardiff University 40-41 Park Place CARDIFF (029) 20875035