Hi. I am not seeing a disabled OK button. Could you tell me what version of SPSS you are using?
Could you please copy and paste this into a syntax window and make sure that it runs successfully?
data list free /pretest posttest.
begin data.
10 15
09 12
10 11
14 15
end data.
COMPUTE diff=pretest-posttest.
EXECUTE.
The only times I have seen OK disabled are when I have either not yet entered a new variable name (Target Variable), attempted to define the numeric expression, or have pasted a function in the Numeric Expression panel but haven't finished defining it yet.
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Rick Marcantonio
Quality Assurance
IBM
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