solarforecastarbiter.metrics.event.false_alarm_ratio¶
-
solarforecastarbiter.metrics.event.
false_alarm_ratio
(obs, fx)[source]¶ False Alarm Ratio (FAR).
\[\text{FAR} = \text{FP} / (\text{TP} + \text{FP})\]Parameters: - obs ((n,) array-like) – Observed event values (True=event, False=no event).
- fx ((n,) array-like) – Forecasted event values (True=event, False=no event).
Returns: far (float) – The FAR of the forecast.
Raises: RuntimeError
– If there is no forecast or observation timeseries data, or the forecast and observation timeseries data do not have the same length.