mean_squared_error()

audmetric.mean_squared_error(truth, prediction)

Mean squared error.

$$\text{MSE} = \frac{1}{n} \sum^n_{i=1} (\text{prediction} - \text{truth})^2$$

Parameters:

• truth (Sequence[float]) – ground truth values

• prediction (Sequence[float]) – predicted values

Return type:

float

Returns:

mean squared error

Raises:

ValueError – if truth and prediction differ in length

Examples

>>> mean_squared_error([0, 0], [0, 1])
0.5