MapDatasetEventSampler¶

class gammapy.datasets.MapDatasetEventSampler(random_state='random-seed')[source]¶

Bases: object

Sample events from a map dataset

Parameters

random_state{int, ‘random-seed’, ‘global-rng’, RandomState}: Defines random number generator initialisation. Passed to get_random_state.

Methods Summary

`event_det_coords`(observation, events)	Add columns of detector coordinates (DETX-DETY) to the event list.
`event_list_meta`(dataset, observation)	Event list meta info.
`run`(dataset[, observation])	Run the event sampler, applying IRF corrections.
`sample_background`(dataset)	Sample background
`sample_edisp`(edisp_map, events)	Sample energy dispersion map.
`sample_psf`(psf_map, events)	Sample psf map.
`sample_sources`(dataset)	Sample source model components.

Methods Documentation

static event_det_coords(observation, events)[source]¶

Add columns of detector coordinates (DETX-DETY) to the event list.

Parameters

observationObservation: In memory observation.
eventsEventList: Event list.

Returns

eventsEventList: Event list with columns of event detector coordinates.

static event_list_meta(dataset, observation)[source]¶

Event list meta info.

Parameters

datasetMapDataset: Map dataset.
observationObservation: In memory observation.

Returns

metadict: Meta dictionary.

run(dataset, observation=None)[source]¶

Run the event sampler, applying IRF corrections.

Parameters

datasetMapDataset: Map dataset
observationObservation: In memory observation.
edispBool: It allows to include or exclude the Edisp in the simulation.

Returns

eventsEventList: Event list.

sample_background(dataset)[source]¶

Sample background

Parameters

datasetMapDataset: Map dataset

Returns

eventsgammapy.data.EventList: Background events

sample_edisp(edisp_map, events)[source]¶

Sample energy dispersion map.

Parameters

edisp_mapEDispMap: Energy dispersion map
eventsEventList: Event list with the true energies

Returns

eventsEventList: Event list with reconstructed energy column.

sample_psf(psf_map, events)[source]¶

Sample psf map.

Parameters

psf_mapPSFMap: PSF map.
eventsEventList: Event list.

Returns

eventsEventList: Event list with reconstructed position columns.

sample_sources(dataset)[source]¶

Sample source model components.

Parameters

datasetMapDataset: Map dataset.

Returns

eventsEventList: Event list