Message-ID: <47BEC39F.5090504@postgrad.manchester.ac.uk>
Date: 2008-02-22T12:44:15Z
From: Richard Pearson
Subject: how to create ROC curve for 2 dimensional classifiers
In-Reply-To: <8ee9d8f20802211126p552dcc19o333e51c22da6f981@mail.gmail.com>
I'm not aware of any packages for doing such plots. Conceptually,
presumably a ROC curve for a 2d classifier would be a 3d chart, with
x-axis being FPR for 1st classifier, z-axis being FPR for 2nd classifier
and y-axis being TPR. You would get a "ROC surface" rather than a ROC
curve. Does that make sense?
Regards
Richard.
Waverley wrote:
> Hi,
>
> I understand for 1 d classifiers, you can use ROCR package.
>
> Is there a package you can plot ROC curve for 2d classifiers? One of
> my colleagues asked me about this. I have been quite puzzled,
> conceptually, how you can do the ROC curve for 2d classifiers. Can
> someone share his/her knowledge or experience?
>
> Thanks in advance.
>
>