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st: Bootstrapping for model validation

From   Suraj Sharma <>
Subject   st: Bootstrapping for model validation
Date   Sat, 6 Apr 2013 18:50:35 -0400

Dear Statalist - I would appreciate your help as a newcomer to Stata. I need to internally validate a Cox regression model using bootstrapping and obtaining a Harrells C-statistic. I know this requires the generation of a program but am unsure as to how to proceed with this. Any help would be appreciated. 

Suraj Sharma
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