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.:

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

Parameters:

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

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

Returns:

The MAPE for the given predictions.