Samuel,
Since the difference in AUCs has insufficient power and doesn't really 
take into account the pairing of predictions, I recommend the Hmisc 
package's rcorrp.cens function.  Its method has good power and asks 
the question "is one predictor more concordant than the other in the 
same pairs of observations?".
Frank
Frank E Harrell Jr   Professor and Chairman        School of Medicine
                      Department of Biostatistics   Vanderbilt University
On Mon, 23 Aug 2010, Samuel Okoye wrote:
> Hello,
>
> Is there is any R function computes the AUC for paired data?
>
> Many thanks,
> Samuel
>
>
>
>
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