At 17:04 17/12/02 +0000, Nick Cox wrote:
Hans J. Baumgartner
> Is it possible to refer to the dummy variables, created by xi:?
>
> [...]
> _Iregio_8415
> _Iregio_8417
> _Iregio_8425
> _Iregio_8435
> _Iregio_9189
> [...]
>
> I'd like to avoid stating the variables individually, since
> they are
> simply to many, when testing for there joint significance,
> for instance.
>
> N.B.
> test _Iregio_*
> does not work.
>
I was puzzled by your posting
yesterday implying that -unab- is
inappropriate, but it does seem to be
what you need:
unab dum : _Iregio_*
test `dum'
or, alternatively, in one line:
testparm _Iregio_*
(See -[R] test- or online -help test-.)
Roger
--
Roger Newson
Lecturer in Medical Statistics
Department of Public Health Sciences
King's College London
5th Floor, Capital House
42 Weston Street
London SE1 3QD
United Kingdom
Tel: 020 7848 6648 International +44 20 7848 6648
Fax: 020 7848 6620 International +44 20 7848 6620
or 020 7848 6605 International +44 20 7848 6605
Email: [email protected]
Opinions expressed are those of the author, not the institution.
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/