threeML.plugins.DispersionSpectrumLike module

class threeML.plugins.DispersionSpectrumLike.DispersionSpectrumLike(name: str, observation, background=None, background_exposure=None, verbose=True, tstart=None, tstop=None)

Bases: threeML.plugins.SpectrumLike.SpectrumLike

display_rsp()

Display the currently loaded full response matrix, i.e., RMF and ARF convolved :return:

classmethod from_function(name: str, source_function, response, source_errors=None, source_sys_errors=None, background_function=None, background_errors=None, background_sys_errors=None) → threeML.plugins.DispersionSpectrumLike.DispersionSpectrumLike

Construct a simulated spectrum from a given source function and (optional) background function. If source and/or background errors are not supplied, the likelihood is assumed to be Poisson.

Parameters

• name – simulated data set name

• source_function – astromodels function

• response – 3ML Instrument response

• source_errors – (optional) gaussian source errors

• source_sys_errors – (optional) systematic source errors

• background_function – (optional) astromodels background function

• background_errors – (optional) gaussian background errors

• background_sys_errors – (optional) background systematic errors

Returns

simulated DispersionSpectrumLike plugin

get_pha_files()

get_simulated_dataset(new_name=None, **kwargs)

Returns another DispersionSpectrumLike instance where data have been obtained by randomizing the current expectation from the model, as well as from the background (depending on the respective noise models)

Returns

a DispersionSpectrumLike simulated instance

property response

set_model(likelihoodModel)

Set the model to be used in the joint minimization.

set_model_integrate_method(method: str)

Change the integrate method for the model integration :param method: (str) which method should be used (simpson or trapz)

write_pha(filename: str, overwrite: bool = False, force_rsp_write: bool = False) → None

Writes the observation, background and (optional) rsp to PHAII fits files

Parameters

• filename – base file name to write out

• overwrite – if you would like to force overwriting of the files

• force_rsp_write – force the writing of an rsp even if not required