solarforecastarbiter.metrics.deterministic.mean_bias¶
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solarforecastarbiter.metrics.deterministic.
mean_bias
(obs, fx, error_fnc=<function error>)[source]¶ Mean bias error (MBE).
\[\text{MBE} = 1/n \sum_{i=1}^n (\text{fx}_i - \text{obs}_i)\]Parameters: - obs ((n,) array-like) – Observed values.
- fx ((n,) array-like) – Forecasted values.
- error_fnc (function) – A function that returns the error, default fx - obs. First argument is obs, second argument is fx.
Returns: mbe (float) – The MBE of the forecast.