 |
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
st: AW: "Estimates diverging" error message in -xtlogit, pa-
<>
If anyone wants to reproduce Thomas` problem:
*************
webuse union, clear
xtdes
set seed 76843
replace union=. if runiform()<.8
xtdes
xtlogit union age grade /*
*/ i.not_smsa south##c.year, /*
*/ pa cor(unst)
*************
HTH
Martin
-----Ursprüngliche Nachricht-----
Von: [email protected]
[mailto:[email protected]] Im Auftrag von Thomas Klausch
Gesendet: Mittwoch, 21. Oktober 2009 15:39
An: [email protected]
Betreff: st: "Estimates diverging" error message in -xtlogit, pa-
Dear list members,
When estimating a population averaged (marginal) model with -xtlogit,
pa- I receive the error message "estimates diverging (missing
predictions)". This happens only if I use an unstructured correlation
structure.
I am analysing unbalanced panel data with missing observations for
many individuals. I suppose this could be an explanation. What,
however, would be a suitable solution, switching to an exchangeable
structure? Or shouldn't I use marginal models in unbalanced panels?
Thanks
Thomas
*
* 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/