I cannot reproduce the problem on my system. Can you provide
a copy of the whole command?
ben
> -----Original Message-----
> Dear all,
>
> I'm trying to get some LaTeX code into an estout-output. I estimate
> different models for some different units, so I wanted to group these
> models by suboption "mgroups":
>
> ...mgroups("country1" "country2" , pattern(1 0 0 1 0 0) span
> prefix(multicolumn{@span}{c}{) suffix(}))...
>
> stata reports: "option prefix() not allowed...Any suggestions?
>
> Thanks,
> Johannes Geyer
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