Table 2.

The definition of measures employed in this study

Measure	Abbreviation	Equation *
Sensitivity (recall)	Sens.	TP/(TP+FN)
Specificity	Spec.	TN/(TN+FP)
Matthews' correlation coefficient	MCC	(TP×TN-FP×FN)/sqrt((TP+FP)×(TN+FN)×(TP+FN)×(TN+FP))
Probability excess	Prob. Excess	(TP×TN-FP×FN)/((TP+FN)×(TN+FP))

* The definition of the abbreviations used: TP is the number of correctly classified disordered residues; FP is the number of ordered residues incorrectly classified as disordered; TN is the number of correctly classified ordered residues; and FN is the number of disordered residues incorrectly classified as ordered.