How can i calculate sensitivity(True positive rate) and specificity(True negative rate) using libsvm as a binary classifier??

Hello, I am working on face verification problem.I am using LibSVM as a classifier. I want to calculate true positive rate and true negative rate.

By using these two performance measures, I want to calculate Equal error rate and also want to draw ROC curve.

I read about perfcurve command in matlab.But what here score means in command.??

[Junaid Ali]

Dear Sweety Check out this link hope this will help you! http://stackoverflow.com/questions/30169795/how-can-i-calculate-sensitivitytrue-positive-rate-and-specificitytrue-negativ