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

st: Negative predictions after trnbin0

From   D Jimenez Rubio <[email protected]>
To   <[email protected]>
Subject   st: Negative predictions after trnbin0
Date   Wed, 19 Jan 2005 15:49:14 -0000

Dear all,
I have used a truncated negative binomial model (trbin0) for the
conditional number of visits to the doctor. I have found out that the
predictions after the estimation of the positive number of visits is
sometimes negative. Is there any one who could help me to understand why
that happens?

Many thanks in advance,


*   For searches and help try:

© Copyright 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index