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st: RE: error message in mixed models stata 9
This is a message of yearning from the innards of Mata.
Assuming your command is legal, it is StataCorp's
Herman van de Werfhorst
> if I want to run a random intercept mixed model (multilevel
> model) with the following form, I get an error message which
> I don't understand:
> . xtmixed y i1 i2 g3 g4 || groupvar:
> <istmt>: 3499 _xtm_setup() not found
> where i1 and i2 are individual level variables, and g3 and g4
> variables measured at the higher level in which individuals
> are nested (at the level of the variable groupvar).
> Does anyone know what "<istmt>: 3499 _xtm_setup() not
> found" means? I have updated my stata 9 very recently.
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