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Output File

The current state of the ROI can be written at any point by calling ~fermipy.gtanalysis.GTAnalysis.write_roi.

>>> gta.write_roi('output.npy')

The output file will contain all information about the state of the ROI as calculated up to that point in the analysis including model parameters and measured source characteristics (flux, TS, NPred). An XML model file will also be saved for each analysis component.

The output file can be read with ~numpy.load:

>>> o = np.load('output.npy').flat[0]
>>> print(o.keys())
['roi', 'config', 'sources','version']

The output file is organized in four top-level of dictionaries:

ROI Dictionary

Source Dictionary

The sources dictionary contains one element per source keyed to the source name. The following table lists the elements of the source dictionary and their descriptions.