solarforecastarbiter.metrics.deterministic.root_mean_square¶
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solarforecastarbiter.metrics.deterministic.
root_mean_square
(obs, fx, error_fnc=<function error>)[source]¶ Root mean square error (RMSE).
\[\text{RMSE} = \sqrt{ 1/n \sum_{i=1}^n (\text{fx}_i - \text{obs}_i)^2 }\]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: rmse (float) – The RMSE of the forecast.