Hi Roberto,
Thank you very much for your help. I will follow your
sugggestions and see if I can solve the problem.
Chloe
--- "Roberto G. Gutierrez, StataCorp"
<[email protected]> wrote:
> Tsui-o Tai <[email protected]> writes:
>
> > I used xtmixed to run random-tntecept models.
> Somehow I could not get the
> > variance components. The results indicated that
> "dzeros () not allowed" and
> > "option notab not allowed". My results are shown
> in the following. Could
> > anyone help me delect the problem? Thank you very
> much for your help.
> [...]
>
> These error messages seem to indicate that your
> Stata 9 ado files have
> been corrupted or otherwise comprimised by some
> pre-Stata 9 versions of
> these files. These error messages point out that
> you are getting pre-Stata
> 9 behavior for the commands -_diparm- and -ml
> model-, whereas -xtmixed- is
> relying on Stata 9 behavior.
>
> Another possibility is that you have altered your
> adopath so that the
> pre-Stata 9 files are taking precedence where they
> should not be.
>
> You should also make sure that your ado-files and
> executable are in sync.
> Type -update query- and follow the instructions.
>
> If after checking for the above, the problem
> persists, please write in to
> tech support at [email protected].
>
> --Bobby
> [email protected]
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>
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