solarforecastarbiter.metrics.deterministic.root_mean_square

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.