What is the True Positive Rate?

The True Positive Rate (Sensitivity, Recall, Power) is a performance metric that measures the probability that your model will predict positive when the true value is positive.

• It is closely related to the True Negative Rate, which is completely analogous.
• The False Negative Rate and the True Positive Rate sum up to 1.
• The True Positive Rate is the answer to the following question: “If the true value is positive, what share did my model predict correctly?”
• The True Positive Rate is calculated as follows: