modeling - Models and fitting

gammapy.modeling Package

Models and fitting.

Functions

select_nested_models(datasets, parameters, ...)	Compute the test statistic (TS) between two nested hypotheses.
stat_profile_ul_scipy(value_scan, stat_scan)	Compute upper limit of a parameter from a likelihood profile.

Classes

Covariance	Parameter covariance class.
Fit	Fit class.
FitResult	Fit result class.
OptimizeResult	Optimize result object.
CovarianceResult	Covariance result object.
Parameter	A model parameter.
Parameters	Parameters container.
PriorParameter	Parameter of a Prior.
PriorParameters	Container of parameter priors.
Sampler	Sampler class.
SamplerResult	SamplerResult class.

gammapy.modeling.models Package

Built-in models in Gammapy.

Functions

create_cosmic_ray_spectral_model([particle])	Cosmic a cosmic ray spectral model at Earth.
create_crab_spectral_model([reference])	Create a Crab nebula reference spectral model.
create_fermi_isotropic_diffuse_model(filename)	Read Fermi isotropic diffuse model.
integrate_spectrum(func, energy_min, energy_max)	Integrate one-dimensional function using the log-log trapezoidal rule.
read_hermes_cube(filename)	Read 3d templates produced with hermes.
scale_plot_flux(flux[, energy_power])	Scale flux to plot.

Classes

BrokenPowerLawSpectralModel	Spectral broken power-law model.
CompoundSpectralModel	Arithmetic combination of two spectral models.
ConstantFluxSpatialModel	Spatially constant flux spatial model.
ConstantSpatialModel	Spatially constant (isotropic) spatial model.
ConstantSpectralModel	Constant model.
ConstantTemporalModel	Constant temporal model.
DatasetModels	Immutable models container.
DiskSpatialModel	Constant disk model.
EBLAbsorptionNormSpectralModel	Gamma-ray absorption models.
ExpCutoffPowerLaw3FGLSpectralModel	Spectral exponential cutoff power-law model used for 3FGL.
ExpCutoffPowerLawNormSpectralModel	Norm spectral exponential cutoff power-law model.
ExpCutoffPowerLawSpectralModel	Spectral exponential cutoff power-law model.
ExpDecayTemporalModel	Temporal model with an exponential decay.
FoVBackgroundModel	Field of view background model.
GaussianSpatialModel	Two-dimensional Gaussian model.
GaussianSpectralModel	Gaussian spectral model.
GaussianTemporalModel	A Gaussian temporal profile.
GeneralizedGaussianSpatialModel	Two-dimensional Generalized Gaussian model.
GeneralizedGaussianTemporalModel	A generalized Gaussian temporal profile.
LightCurveTemplateTemporalModel	Temporal light curve model.
LinearTemporalModel	Temporal model with a linear variation.
LogParabolaNormSpectralModel	Norm spectral log parabola model.
LogParabolaSpectralModel	Spectral log parabola model.
MeyerCrabSpectralModel	Meyer 2010 log polynomial Crab spectral model.
Model	Model class that contains only methods to create a model listed in the registries.
Models	Sky model collection.
ModelBase	Model base class.
NaimaSpectralModel	A wrapper for Naima models.
PiecewiseNormSpectralModel	Piecewise spectral correction with a free normalization at each fixed energy nodes.
PiecewiseNormSpatialModel	Piecewise spatial correction with a free normalization at each fixed nodes.
PointSpatialModel	Point Source.
PowerLaw2SpectralModel	Spectral power-law model with integral as amplitude parameter.
PowerLawNormSpectralModel	Spectral power-law model with normalized amplitude parameter.
PowerLawSpectralModel	Spectral power-law model.
PowerLawTemporalModel	Temporal model with a Power Law decay.
Prior	Prior abstract base class.
GaussianPrior	One-dimensional Gaussian Prior.
GeneralizedGaussianPrior	One-dimensional Generalized Gaussian Prior.
UniformPrior	Uniform Prior.
LogUniformPrior	LogUniform Prior.
ScaleSpectralModel	Wrapper to scale another spectral model by a norm factor.
Shell2SpatialModel	Shell model with outer radius and relative width parametrization.
ShellSpatialModel	Shell model.
SineTemporalModel	Temporal model with a sinusoidal modulation.
SkyModel	Sky model component.
SmoothBrokenPowerLawSpectralModel	Spectral smooth broken power-law model.
SpatialModel	Spatial model base class.
SpectralModel	Spectral model base class.
SuperExpCutoffPowerLaw3FGLSpectralModel	Spectral super exponential cutoff power-law model used for 3FGL.
SuperExpCutoffPowerLaw4FGLDR3SpectralModel	Spectral super exponential cutoff power-law model used for 4FGL-DR3.
SuperExpCutoffPowerLaw4FGLSpectralModel	Spectral super exponential cutoff power-law model used for 4FGL-DR1 (and DR2).
TemplatePhaseCurveTemporalModel	Temporal phase curve model.
TemplateSpatialModel	Spatial sky map template model.
TemplateSpectralModel	A model generated from a table of energy and value arrays.
TemplateNDSpatialModel	A model generated from a ND map where extra dimensions define the parameter space.
TemplateNDSpectralModel	A model generated from a ND map where extra dimensions define the parameter space.
TemplateNPredModel	Background model.
TemporalModel	Temporal model base class.

Variables

MODEL_REGISTRY	Registry of model classes
SPATIAL_MODEL_REGISTRY	Registry of spatial model classes.
SPECTRAL_MODEL_REGISTRY	Registry of spectral model classes.
TEMPORAL_MODEL_REGISTRY	Registry of temporal models classes.
EBL_DATA_BUILTIN