Both the error message and the help for -mrdum- tell you 
what is required, an argument for the -stub()- option, 
e.g. -stub(q4)- not -stub-. 
Nick 
[email protected] 
peter harper
 
> dummy variables for multiple responses to a survey
> question. I have tried -mrtab-
> I have tried
> .mrdum x1 x2 x3, stub
> option stub() required
> 
> This is the message I got. Can anyone please tell me
> what is precisely required here.
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