solarforecastarbiter.metrics.deterministic.combined_performance_index¶
-
solarforecastarbiter.metrics.deterministic.
combined_performance_index
(obs, fx)[source]¶ Combined Performance Index (CPI) metric.
\[\text{CPI} = (\text{KSI} + \text{OVER} + 2 * \text{RMSE}) / 4\]Parameters: - obs ((n,) array-like) – Observed values.
- fx ((n,) array-like) – Forecasted values.
Returns: cpi (float) – The CPI between the true and predicted values.