Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

Re: st: maximum number of exogenous variables in ivtobit?


From   Adrienne L <[email protected]>
To   [email protected], [email protected]
Subject   Re: st: maximum number of exogenous variables in ivtobit?
Date   Thu, 1 Dec 2005 15:24:41 -0500

Greetings statalistserv and Brian Poi,

Rest assured listservers that there is not a bug in -ivtobit-.  In
setting up a file to send to Brian, I realized that it was in fact my
user error: by increasing my matsize from 600 to 800, I no longer get
the "invalid syntax" error.  Extra special thanks to Brian for
requesting a copy of my data!

Adrienne

On Wed, 30 Nov 2005, Adrienne L wrote:

> Greetings statalistserv,
>
> I am using ivtobit.  When I include more than 35 exogenous variables,
> I get the following error: "invalid syntax."  I've tried different
> combinations of the 35 variables and have made sure that of there is a
> value in each of my variables for each observation.  I am running
> Stata/SE 9.0.  Originally I thought that it was incompatibility with
> the * wildcard (such a question was posted previously on this
> listserv), but if I limit my wildcard to < 35 variables, there is no
> error.
> Specifically I am running the following:
> ivtobit y _Ix2*  _Ix3* _Ix4*  _Ix5* _Ix6*  _Ix7* (x1=x8)
> [pweight=weight], ll ul cluster(village)
>
> Neither ivreg or ivprobit (when y is converted to binary) have the
> "invalid syntax" problem
>

This could be a bug in the syntax parsing of -ivtobit-.

If Adrienne could send me (privately) a dataset and short do-file to
replicate the problem, I would be happy to look into it.

   -- Brian Poi
   -- [email protected]

*
*   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/



© Copyright 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index