Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down at the end of May, and its replacement, statalist.org is already up and running.


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

RE: st: xtoverid error for "operator not allowed"


From   "Schaffer, Mark E" <M.E.Schaffer@hw.ac.uk>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   RE: st: xtoverid error for "operator not allowed"
Date   Thu, 18 Apr 2013 12:04:38 +0000

Qian,

John's on the right track, I think.  xtiverid is a bit old and doesn't  understand the variable prefixes used in more recent versions of Stata.

The "o." prefix is used by Stata for a variable that's been omitted because of collinearity or whatever.  If you reestimate but omit the dropped variable by hand, xtoverid should then work.

HTH,
Mark

> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-
> statalist@hsphsun2.harvard.edu] On Behalf Of John Antonakis
> Sent: 18 April 2013 07:33
> To: statalist@hsphsun2.harvard.edu
> Subject: Re: st: xtoverid error for "operator not allowed"
> 
> You might have used factor variables (for dummies, interactions, etc?).
> 
> Try again and use manually generated dummies or interactions.
> 
> HTH,
> J.
> 
> __________________________________________
> 
> John Antonakis
> Professor of Organizational Behavior
> Director, Ph.D. Program in Management
> 
> Faculty of Business and Economics
> University of Lausanne
> Internef #618
> CH-1015 Lausanne-Dorigny
> Switzerland
> Tel ++41 (0)21 692-3438
> Fax ++41 (0)21 692-3305
> http://www.hec.unil.ch/people/jantonakis
> 
> Associate Editor
> The Leadership Quarterly
> __________________________________________
> 
> On 18.04.2013 06:13, Qian Yu wrote:
> > Dear all
> >        I encountered a problem of "xtoverid". After I input the
> > command "xtoverid2, noi robust", the error says that "o. operator not
> > allowed". I found this is very weird, since this command works for
> > another bigger sample, but it doesn't work for this small sample.
> > Could anyone give me some advice?
> >
> > Many thanks in advance,
> > Qian
> >
> >
> >
> > --
> > View this message in context:
> > http://statalist.1588530.n2.nabble.com/xtoverid-error-for-operator-not
> > -allowed-tp7580351.html Sent from the Statalist mailing list archive
> > at Nabble.com.
> > *
> > *   For searches and help try:
> > *   http://www.stata.com/help.cgi?search
> > *   http://www.stata.com/support/faqs/resources/statalist-faq/
> > *   http://www.ats.ucla.edu/stat/stata/
> 
> *
> *   For searches and help try:
> *   http://www.stata.com/help.cgi?search
> *   http://www.stata.com/support/faqs/resources/statalist-faq/
> *   http://www.ats.ucla.edu/stat/stata/


----- 
Sunday Times Scottish University of the Year 2011-2013
Top in the UK for student experience
Fourth university in the UK and top in Scotland (National Student Survey 2012)


We invite research leaders and ambitious early career researchers to 
join us in leading and driving research in key inter-disciplinary themes. 
Please see www.hw.ac.uk/researchleaders for further information and how
to apply.

Heriot-Watt University is a Scottish charity
registered under charity number SC000278.


*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/


© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   Site index