[R] Validation / Training - test data
    Frank Harrell 
    f.harrell at vanderbilt.edu
       
    Wed Sep 29 14:38:42 CEST 2010
    
    
  
Split sample validation is highly unstable with your sample size.
The rms package can help with bootstrapping or cross-validation, assuming
you have all modeling steps repreated for each resample.
Frank
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Frank Harrell
Department of Biostatistics, Vanderbilt University
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