Re: st: inteff afer logit

[Richard Goldstein <richgold@ix.netcom.com>]

if you look at the code (inteff.ado) and search for "error 9" you will 
discover the condition(s) that can cause its appearance

Rich

Sebastian Baumeister wrote:

> 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);
>
>
> Thanks
>
> Sebastian
>
> *
> *   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/