[R] how to How to compare the concordance index between two nomograms with R

[Frank Harrell]

A nomogram is a graphical device for displaying a model.  Please try again
with your question.  If you also wrote me privately earlier today please
choose one mode of communication.
Thanks
Frank

lijundfgd wrote
> 
> I have got two kinds of nomogram for the same data set analyzed by Cox
> regression. My question is how to compare the concordance index between
> these two nomograms with R?
> 


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