David Winsemius
On Feb 7, 2009, at 3:17 PM, Waverley wrote:
> Hi,
>
> I have a question about ROCR package. I got the ROC curve plotted
> without any problem following the manual. However, I don't know to
> extract the values, e.g. y.values ( I think it is the area under the
> curve auc measure). The return is an object of class "performance"
> which have Slots and one of the slot is "y.values". I type the object
> and I can see them in screen. But I want to extract the value for
> further programming and computation. I did a summary of the object
> and it is a "S4" mode which I don't understand.
>
> Can someone help?
>
> Thanks a lot in advance.
>
> --
> Waverley @ Palo Alto
>
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