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

st: Efron and Cumulative hazard

To   "stata" <>
Subject   st: Efron and Cumulative hazard
Date   Thu, 13 May 2004 10:23:13 +0200

Dear Friends, 

I've been estimating  a cox model with frailty. Unfortunately when I use
the option efron, the cumulative hazard is not an increasing function. Enzo
Coviello has told me that one year ago there was a similar comunication.
Is there still a bug or it does depend on frailty option? 

Secondly, I'm looking for a reference where the philosophical difference
between logit/probit and duration  is explained. Please Have you got articles?


Tiscali ADSL libera la velocita'!
Attiva Senza Canone entro il 17 maggio: navighi a 1,5 euro l'ora per i primi
3 mesi,se scegli il modem e' tuo in comodato gratuito e in piu' hai gratis
SuperMail per 12 mesi. Non aspettare, attivala subito!

*   For searches and help try:

© Copyright 1996–2017 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index