PRTools Contents

PRTools User Guide



Multiclass error area under the ROC

    E = TESTAUC(A*W)
    E = TESTAUC(A,W)
    E = A*TESTAUC(W)

 A Dataset to be classified
 W Classifier

 E Error, Area under the ROC


The area under the ROC is computed for the datset A w.r.t. the  classifer W. The estimator is based on a rank analysis of the classifier  outcomes. Ties are broken by a two-way sorting and averaging.

The multiclass situation is solved by averaging over all outcomes of  the one-against-rest ROCs.

Note that E is an error and not a performance measure like the AUC often  used in literature.

See also

datasets, mappings, testc, prroc,

PRTools Contents

PRTools User Guide

This file has been automatically generated. If badly readable, use the help-command in Matlab.