Esempio n. 1
0
    def __init__(self, srcMaps=None, expCube=None, binnedExpMap=None,
                 irfs=None, phased_expmap=None):
        if srcMaps is None or expCube is None:
            srcMaps, expCube, binnedExpMap, irfs = self._obsDialog(srcMaps,
                                                                   expCube)
        self._inputs ='\n'.join(('Source maps: ' + str(srcMaps),
                                  'Exposure cube: ' + str(expCube),
                                  'Exposure map: ' + str(binnedExpMap),
                                  'IRFs: ' + str(irfs)))
        if phased_expmap is not None:
            self._inputs += '\n %s' % phased_expmap
        self.srcMaps = srcMaps
        self.expCube = expCube
        self.binnedExpMap = binnedExpMap
        self.phased_expmap = phased_expmap
        if irfs is None or irfs == 'CALDB':
            my_cuts = pyLike.Cuts(srcMaps, "", False, True, True)
            self.irfs = my_cuts.CALDB_implied_irfs()
        else:
            self.irfs = irfs

        pyLike.AppHelpers_checkExposureMap(srcMaps, binnedExpMap)
        # EAC switch to using AppHelpers...
        self.countsMap = pyLike.AppHelpers_readCountsMap(srcMaps)
        self._createObservation(srcMaps, expCube, self.irfs)
Esempio n. 2
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 def __init__(self,
              eventFile=None,
              scFile=None,
              expMap=None,
              expCube=None,
              irfs=None,
              checkCuts=True,
              sctable='SC_DATA'):
     self.sctable = sctable
     self.checkCuts = checkCuts
     if eventFile is None and scFile is None:
         eventFile, scFile, expMap, expCube, irfs = self._obsDialog()
     if checkCuts:
         self._checkCuts(eventFile, expMap, expCube)
     self.expMap = expMap
     self.expCube = expCube
     if irfs is None or irfs == 'CALDB':
         evfiles = self._fileList(eventFile)
         my_cuts = pyLike.Cuts(evfiles[0], "EVENTS", False, True, True)
         self.irfs = my_cuts.CALDB_implied_irfs()
     else:
         self.irfs = irfs
     self._inputs = '\n'.join(
         ('Event file(s): ' + str(eventFile),
          'Spacecraft file(s): ' + str(scFile),
          'Exposure map: ' + str(expMap), 'Exposure cube: ' + str(expCube),
          'IRFs: ' + str(irfs)))
     self._respFuncs = pyLike.ResponseFunctions()
     evfiles = self._fileList(eventFile)
     self._respFuncs.load_with_event_types(self.irfs, "", evfiles[0],
                                           "EVENTS")
     self._expMap = pyLike.ExposureMap()
     if expMap is not None and expMap != "":
         self._expMap.readExposureFile(expMap)
     self._scData = pyLike.ScData()
     self._roiCuts = pyLike.RoiCuts()
     self._expCube = pyLike.ExposureCube()
     if expCube is not None and expCube != "":
         self._expCube.readExposureCube(expCube)
     self._expCube.setEfficiencyFactor(self._respFuncs.efficiencyFactor())
     self._eventCont = pyLike.EventContainer(self._respFuncs, self._roiCuts,
                                             self._scData)
     self.observation = pyLike.Observation(self._respFuncs, self._scData,
                                           self._roiCuts, self._expCube,
                                           self._expMap, self._eventCont)
     self._readData(scFile, eventFile)
Esempio n. 3
0
    def __init__(
        self,
        name,
        eventFile,
        ft2File,
        livetimeCube,
        kind,
        exposureMap=None,
        sourceMaps=None,
        binnedExpoMap=None,
        source_name=None,
    ):

        # Initially the nuisance parameters dict is empty, as we don't know yet
        # the likelihood model. They will be updated in set_model

        super(FermiLATLike, self).__init__(name, {})

        # Read the ROI cut
        cc = pyLike.RoiCuts()
        cc.readCuts(eventFile, "EVENTS")
        self.ra, self.dec, self.rad = cc.roiCone()

        # Read the IRF selection
        c = pyLike.Cuts(eventFile, "EVENTS")
        self.irf = c.CALDB_implied_irfs()

        self.ft2File = ft2File
        self.livetimeCube = livetimeCube

        # These are the boundaries and the number of energies for the computation
        # of the model (in keV)
        self.emin = 1e4
        self.emax = 5e8
        self.Nenergies = 200

        # This is the limit on the effective area correction factor,
        # which is a multiplicative factor in front of the whole model
        # to account for inter-calibration issues. By default it can vary
        # by 10%. This can be changed by issuing:
        # FermiLATUnbinnedLikeInstance.effCorrLimit = [new limit]
        # where for example a [new limit] of 0.2 allow for an effective
        # area correction up to +/- 20 %

        self.effCorrLimit = 0.1

        if kind.upper() != "UNBINNED" and kind.upper() != "BINNED":

            raise RuntimeError("Accepted values for the kind parameter are: " +
                               "binned, unbinned. You specified: %s" % (kind))

        else:

            self.kind = kind.upper()

        if kind.upper() == "UNBINNED":

            assert exposureMap is not None, "You have to provide an exposure map"

            self.eventFile = eventFile
            self.exposureMap = exposureMap
            # Read the files and generate the pyLikelihood object
            self.obs = UnbinnedAnalysis.UnbinnedObs(
                self.eventFile,
                self.ft2File,
                expMap=self.exposureMap,
                expCube=self.livetimeCube,
                irfs=self.irf,
            )

        elif kind.upper() == "BINNED":

            assert sourceMaps is not None, "You have to provide a source map"
            assert (
                binnedExpoMap
                is not None), "You have to provided a (binned) exposure map"

            self.sourceMaps = sourceMaps
            self.binnedExpoMap = binnedExpoMap

            self.obs = BinnedAnalysis.BinnedObs(
                srcMaps=self.sourceMaps,
                expCube=self.livetimeCube,
                binnedExpMap=self.binnedExpoMap,
                irfs=self.irf,
            )
        pass

        # Activate inner minimization by default
        self.setInnerMinimization(True)

        self._source_name = source_name