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Median Absolute Error#

Median Absolute Error (MAD) is a robust measure of error, similar to MAE, that ignores highly erroneous predictions. Since MAD is a robust statistic, it works well even when used to measure non-normal distributions.

MAD=median(|YiY~|)

Note

In order to maintain the convention of maximizing validation scores, this metric outputs the negative of the original score.

Estimator Compatibility: Regressor

Output Range: -∞ to 0

Parameters#

This metric does not have any parameters.

Example#

use Rubix\ML\CrossValidation\Metrics\MedianAbsoluteError;

$metric = new MedianAbsoluteError();

Last update: 2021-01-26