Compute the expected rates in space-magnitude bins
catalogs_iterable (iterable) – collection of catalogs, should be filtered outside the function
data (csep.core.AbstractBaseCatalog) – observation data
csep.core.forecasts.GriddedForecastlist of tuple(lon, lat, magnitude) events that were skipped in binning. if data was filtered in space and magnitude beforehand this list shoudl be empty.