ObservationFilter#
- class gammapy.data.ObservationFilter(time_filter=None, event_filters=None)[source]#
Bases:
object
Holds and applies filters to observation data.
- Parameters
- time_filter
astropy.time.Time
Start and stop time of the selected time interval. For now we only support a single time interval.
- event_filterslist of dict
An event filter dictionary needs two keys:
type : str, one of the keys in
EVENT_FILTER_TYPES
opts : dict, it is passed on to the method of the
EventListBase
class that corresponds to the filter type (seeEVENT_FILTER_TYPES
)
The filtered event list will be an intersection of all filters. A union of filters is not supported yet.
- time_filter
Examples
>>> from gammapy.data import ObservationFilter, DataStore, Observation >>> from astropy.time import Time >>> from astropy.coordinates import Angle >>> >>> time_filter = Time(['2021-03-27T20:10:00', '2021-03-27T20:20:00']) >>> phase_filter = {'type': 'custom', 'opts': dict(parameter='PHASE', band=(0.2, 0.8))} >>> >>> my_obs_filter = ObservationFilter(time_filter=time_filter, event_filters=[phase_filter]) >>> >>> ds = DataStore.from_dir("$GAMMAPY_DATA/cta-1dc/index/gps") >>> my_obs = ds.obs(obs_id=111630) >>> my_obs.obs_filter = my_obs_filter
Attributes Summary
Methods Summary
copy
()Copy the
ObservationFilter
object.filter_events
(events)Apply filters to an event list.
filter_gti
(gti)Apply filters to a GTI table.
Attributes Documentation
- EVENT_FILTER_TYPES = {'custom': 'select_parameter', 'sky_region': 'select_region'}#
Methods Documentation
- copy()[source]#
Copy the
ObservationFilter
object.