Re: st: inteff afer logit

[Sebastian Baumeister <baum_statal@web.de>]

Nick and Richard: You were absolutely right about my problem. i promise, 
next time i will read the help-file more carefully.

thanks sebastian

Nick Cox schrieb:


> To echo Richard, -inteff- is just more Stata. 
> Thus as in a very recent thread 
> . viewsource inteff.ado 
> will show that the error arises whenever the 
> fourth argument is not the product of the 
> second and third arguments. There is a rule of 
> thumb decision on that. 
> That is, the fourth variable specified must be
> an interaction term. This is explained in the 
> help. Judging by your variable names, this
> is not true of your data. 
> By the way, the Statalist FAQ advises 
> "Before posting, consider other ways of finding information: 
> [...] 
> the authors of user-written ado-files (who usually have email 
> addresses, but are not always members of Statalist)" 
> "Say what command(s) you are using. If they are not part of 
> official Stata, say where they come from: the STB/SJ, SSC, 
> or other archives" 
> In this case, the program -inteff- was published in the Stata Journal. 
> The authors may be members of Statalist, but even so a direct
> approach is often a good bet. 
> Nick 
> n.j.cox@durham.ac.uk 
> Richard Goldstein
>
>  
>
> > if you look at the code (inteff.ado) and search for "error 9" 
> > you will 
> > discover the condition(s) that can cause its appearance
> >    
> Sebastian Baumeister
>
>  
>
> > > I am trying to run inteff afer a logit model, which was 
> > >      
> > used to fit a
> >    
> >
> > > discrete time survival model,  and i get the r(9) error 
> > >      
> > message. Any advise
> >    
> >
> > > in what r(9) means and what might have caused r(9) to 
> > >      
> > appear is highly
> >    
> >
> > > appreciated.
> > >
> > > . logit event _d1 _d2 _d3 _d4 kont_exp sex expxsex, 
> > >      
> > cluster(arzt) nolog
> >    
> >
> > > note: _d4 dropped due to collinearity
> > >
> > > Logistic regression                               Number of obs   
> > > =       2844
> > >                                                  Wald 
> > >      
> > chi2(6)    =      
> >    
> >
> > > 84.24
> > >                                                  Prob > 
> > >      
> > chi2     =     
> >    
> >
> > > 0.0000
> > > Log pseudolikelihood = -1046.9817                 Pseudo R2 
> > >      
> >      =     
> >    
> >
> > > 0.0637
> > >
> > >                                  (Std. Err. adjusted for 
> > >      
> > 34 clusters in 
> >    
> >
> > > arzt)
> > >
> > >      
> > --------------------------------------------------------------
> > ---------------- 
> >    
> >
> > >             |               Robust
> > >       event |      Coef.   Std. Err.      z    P>|z|     
> > >      
> > [95% Conf. 
> >    
> >
> > > Interval]
> > >
> > >      
> > -------------+------------------------------------------------
> > ---------------- 
> >    
> >
> > >         _d1 |   2.487836   .3662857     6.79   0.000     
> > >      
> > 1.769929    
> >    
> >
> > > 3.205743
> > >         _d2 |   2.284119     .36924     6.19   0.000     
> > >      
> > 1.560422    
> >    
> >
> > > 3.007816
> > >         _d3 |     1.7861   .3611189     4.95   0.000      
> > >      
> > 1.07832     
> >    
> >
> > > 2.49388
> > >    kont_exp |   .7616662   .2219238     3.43   0.001     
> > >      
> > .3267034    
> >    
> >
> > > 1.196629
> > >         sex |   .5381819   .2434831     2.21   0.027     
> > >      
> > .0609637      
> >    
> >
> > > 1.0154
> > >     expxsex |  -.5184373   .2895077    -1.79   0.073    
> > >      
> > -1.085862    
> >    
> >
> > > .0489873
> > >       _cons |  -4.454517   .4642658    -9.59   0.000    
> > >      
> > -5.364461   
> >    
> >
> > > -3.544573
> > >
> > >      
> > --------------------------------------------------------------
> > ---------------- 
> >    
> >
> > > . inteff event _d1 _d2 _d3 _d4 kont_exp sex expxsex
> > > r(9);
> > >      
> *
> *   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/
>
>  
*
*   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/