solarforecastarbiter.metrics.deterministic.centered_root_mean_square¶
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solarforecastarbiter.metrics.deterministic.
centered_root_mean_square
(obs, fx)[source]¶ Centered (unbiased) root mean square error (CRMSE):
\[\text{CRMSE} = \sqrt{1/n \sum_{i=1}^n ( (\text{fx}_i - \text{fx}_\text{avg}) - (\text{obs}_i - \text{obs}_\text{avg}))^2 }\]where:
\[\text{fx}_\text{avg} = 1/n \sum_{i=1} \text{fx}_i\]\[\text{obs}_\text{avg} = 1/n \sum_{i=1} \text{obs}_i\]Parameters: - obs ((n,) array-like) – Observed values.
- fx ((n,) array-like) – Forecasted values.
Returns: crmse (float) – The CRMSE of the forecast.