Bookmark and Share

Notice: On March 31, it was announced that Statalist is moving from an email list to a forum. The old list will shut down at the end of May, and its replacement, statalist.org is already up and running.


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

Re: st: Internal model validation


From   Maarten buis <maartenbuis@yahoo.co.uk>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Internal model validation
Date   Thu, 1 Apr 2010 08:46:03 -0700 (PDT)

--- Eduardo Nunez asked:
> I wonder if Stata (version 11) has a module to perform a Cox model
> internal validation (mainly Harrell's C-statistics) using
> bootstrapping?

It is not pre-programmed, but it is not difficult to do in
Stata. You can compute Harrel's C using -estat concordance-, 
see: -help stcox postestimation##estatcon-. You can do the 
bootstrap validation as in:
http://www.stata.com/statalist/archive/2009-09/msg00180.html

Hope this helps,
Maarten

--------------------------
Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen
Germany

http://www.maartenbuis.nl
--------------------------


      

*
*   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   |   Site index