pywrdrb.post.ensemble_metrics.ensemble_std

pywrdrb.post.ensemble_metrics.ensemble_std(ensemble)

Calculate the standard deviation across ensemble realizations.

Parameters:

ensemble (dict of {str: pd.DataFrame}) – Dictionary of ensemble realizations. Each key corresponds to a realization and maps to a DataFrame of time series data.

Returns:

DataFrame of standard deviation values across realizations, indexed by time.

Return type:

pd.DataFrame

Notes

Standard deviation is computed using the unbiased estimator (N-1 in denominator). Assumes all realizations are aligned in index and column structure.