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