[R] net classification improvement?

Essers, Jonah Jonah.Essers at childrens.harvard.edu
Tue Jan 17 02:10:37 CET 2012


Greetings,

I have generated several ROC curves and would like to compare the AUCs.
The data are cross sectional and the outcomes are binary. I am testing
which of several models provide the best discrimination. Would it be most
appropriate to report AUC with 95% CI's?

I have been looking in to the "net reclassification improvement" (see
below for reference) but thus far I can only find a version in Hmisc
package which requires survival data. Any idea what the best approach is
for cross-sectional data?

Thanks

Pencina MJ, D'Agostino RB Sr, D'Agostino RB Jr, Vasan RS. Evaluating the
added predictive ability of a new marker: from area under the ROC curve to
reclassification and beyond. Stat Med 2008;27:157-172



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