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Table 1 Performance measures for binary classifiers

From: Label noise in subtype discrimination of class C G protein-coupled receptors: A systematic approach to the analysis of classification errors

Measure Formula Meaning
Accuracy \(\frac {tp+tn}{tp+fn+fp+tn}\) Measure of correctness
Precision \(\frac {tp}{tp+fp}\) Measure of quality
Recall \(\frac {tp}{tp+fn} \) Measure of completeness
MCC \(\frac {tp*tn-fp*fn}{\sqrt {(tp+fp)(tp+fn)(tn+fp)(tn+fn)}}\) Correlation coefficient