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st: Internal model validation
From
Eduardo Nunez <[email protected]>
To
[email protected]
Subject
st: Internal model validation
Date
Thu, 1 Apr 2010 11:34:22 -0400
Dear statalisters,
I wonder if Stata (version 11) has a module to perform a Cox model
internal validation (mainly Harrell's C-statistics) using
bootstrapping?
The Design R-package from Harrell's has such procedure implemented
("validate.cph {Design}")...see the code below:
f <- cph(S ~ age*sex, x=TRUE, y=TRUE)
validate(f, B=500) # Validate full model fit
Thank you,
Eduardo
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