pysteps.postprocessing.ensemblestats.excprob

pysteps.postprocessing.ensemblestats.excprob(X, X_thr, ignore_nan=False)

For a given forecast ensemble field, compute exceedance probabilities for the given intensity thresholds.

Parameters:

• X (array_like) – Array of shape (k, m, n, …) containing an k-member ensemble of forecasts with shape (m, n, …).

• X_thr (float or a sequence of floats) – Intensity threshold(s) for which the exceedance probabilities are computed.

• ignore_nan (bool) – If True, ignore nan values.

Returns:

out – Array of shape (len(X_thr), m, n) containing the exceedance probabilities for the given intensity thresholds. If len(X_thr)=1, the first dimension is dropped.

Return type:

ndarray