mape

typhon.retrieval.scores.mape(y_pred, y_test)

The Mean Absolute Percentage Error (MAPE)

The MAPE is computed as the mean of the absolute value of the relative error in percent, i.e.:

\[\text{MAPE}(\mathbf{y}, \mathbf{y}_{true}) = \frac{100\%}{n}\sum_{i = 0}^n \frac{|y_{\text{pred},i} - y_{\text{true},i}|} {|y_{\text{true},i}|}\]

Parameters

• y_pred (numpy.array) – The predicted scalar values.

• y_test (numpy.array) – The true values.

Returns

The MAPE for the given predictions.