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 via the get_random_state function

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: Whether 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