Table 2.
The contingency table of the four cases.
| Predict | ||||
|---|---|---|---|---|
| 1 | 0 | Sum | ||
| True value | 1 | TP | FN | Actual positive (TP + FN) |
| 0 | FP | TN | Actual negative (FP + TN) | |
| Sum | TP + FP | FN + TN | TP + FP + FN + TN |
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