wrong direction for ranking

On Thu, Nov 22, 2012 at 1:58 PM, brunosm <brunosm87@gmail.com> wrote:

> the area under the curve (AUC) is negative?
>
> I'm using ROC function with a logistic regression, package Epi.
>
> First time it happens...
>
> Thanks a lot!
>
> Bruno
>



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WenSui Liu
Credit Risk Manager, 53 Bancorp
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