pysteps.verification.spatialscores.fss
pysteps.verification.spatialscores.fss¶
- pysteps.verification.spatialscores.fss(X_f, X_o, thr, scale)¶
Compute the fractions skill score (FSS) for a deterministic forecast field and the corresponding observation field.
- Parameters
- X_f: array_like
Array of shape (m, n) containing the forecast field.
- X_o: array_like
Array of shape (m, n) containing the observation field.
- thr: float
The intensity threshold.
- scale: int
The spatial scale in pixels. In practice, the scale represents the size of the moving window that it is used to compute the fraction of pixels above the threshold.
- Returns
- out: float
The fractions skill score between 0 and 1.
References