Table 2.

Definition of measures employed in this study

Measure	Abbr.	Equation
Sensitivity	Sens.	TP/(TP + FN)
Specificity	Spec.	TN/(TN + FP)
Accuracy	Accu.	(TP + TN)/(TP + FP + TN + FN)
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)]

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