Statalist


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

st: AW: logistic problem with observation


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: AW: logistic problem with observation
Date   Mon, 4 May 2009 18:36:38 +0200

<> 

Just 

*************
destring mors_30 sex, gen(newmors newsex)
*************

and see what happens...


HTH
Martin


-----Ursprüngliche Nachricht-----
Von: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von moleps islon
Gesendet: Montag, 4. Mai 2009 18:16
An: statalist@hsphsun2.harvard.edu
Betreff: st: logistic problem with observation

Dear listers,
I encounter the following while doing a univariate logistic regression:

. logistic mors_30 sex
no observations
no observations
r(2000);

. tab sex

        sex |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,275       48.48       48.48
          2 |      1,355       51.52      100.00
------------+-----------------------------------
      Total |      2,630      100.00

. tab mors_30 sex

           |          sex
   mors_30 |         1          2 |     Total
-----------+----------------------+----------
         0 |     1,245      1,325 |     2,570
         1 |        30         30 |        60
-----------+----------------------+----------
     Total |     1,275      1,355 |     2,630


. logit mors_30 sex
no observations
r(2000);

Other variables work beautifully.


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



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