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# truePositiveCount(of:)

Returns the number of times the predicted label matched the true label.

```
func truePositiveCount(of label: Label) -> Int
```

## Parameters

`label`

The label to use as true positive.

## Return Value

The true positive count.

## Discussion

If the label does not have a confidence threshold, the true positive count is number of elements in the ground truth
labels collection that contains the label. If the label has a confidence threshold NaN, the true positive
count is 0. If the label is not in the known set of labels, the true positive count is 0.

---

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