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

st: re: nlogitrum


From   "Flora Au" <fau@ucalary.ca>
To   statalist@hsphsun2.harvard.edu
Subject   st: re: nlogitrum
Date   Thu, 28 Apr 2005 10:38:15 -0600 (MDT)

Hi,

I am having problem with NLOGITRUM.

This the the command I am using to run the model:

nlogitgen branch = alt(package:1|2, nopack:3)
nlogittree alt branch
nlogitrum pref nurse nsq na2 na3 n_nt1st n_highedu homevis visitsq va2 va3
hv_nt1st hv_highedu nhv homehelp helpsq cost c_highinc, group(indid)
nests(alt branch)

The first two command ran fine, however the last command result in an
error message which is written as follow:

could not calculate numerical derivatives
flat or discontinuous region encountered

Can you assist me as to how to fix this model?


Thank you in advance,
Flora
fau@ucalgary.ca


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