Matlab, how to calculate AUC (Area Under Curve)?

Question

I have the file data.txt with two columns and N rows, something like this:

0.009943796 0.4667975
0.009795735 0.46777886
0.009623984 0.46897832
0         


        

Answer 1

[~,~,~,AUC] = perfcurve(labels,scores,posclass);

% posclass might be 1

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