R help - Nov 2010 - An example for predab.resample in r

Hi;

I want to use bootstrap .632 with predab.resample, but the description is
not clear for me. Can any body give me an example please.


Thanks;
Azad.

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predab.resample can be called by users but usually is not.  It is called by
calibrate.* and validate.* functions in the rms and Design packages (you
neglected to say which package you were using; update to rms if using
Design).  The calibrate and validate functions make it easy to use .632.  

Note that .632 only seems to help when you are using an improper scoring
rule (e.g., proportion classified correctly), not when using smoother
scoring rules such as Brier score, ROC area, etc.

Frank


-----
Frank Harrell
Department of Biostatistics, Vanderbilt University
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