Table 2. Standard metrics for predictive analysis.

Metric	Formula
Accuracy	(TP+TN) / (P+N)
Precision	TP / (TP+FP)
Recall	TP / (TP+FN)
F- measure (F1- score)	2TP / (2TP+FP+FN)

False Positives (FP), False Negatives (FN), True Positives (TP), and True Negatives (TN)