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svmconfmat

Confusion matrix for classification algorithms.

Calling Sequence

cm = svmconfmat(g, ghat)

Parameters

g:

known group labels

ghat:

predicted group labels

cm :

confusion matrix determined by the known group labels g and the predicted group labels ghat

Description

The confusion matrix CM(I,J) represents the count of instances whose known group labels are group J and whose predicted group labels are group I.

Examples

[label,instance]=libsvmread("demos/heart_scale");
cc = svmtrain(label,instance);
[predicted_label]=svmpredict(label,instance,cc);
cm = svmconfmat(label,  predicted_label);
predict libsvm Toolbox svmgrid