0.14 (Sep 30, 2019)#


  • Released Sep 30, 2019

  • 8 contributors

  • 101 pull requests (not all listed below)

What’s new?#

Gammapy v0.14 features a new high level analysis interface. Starting from a YAML configuration file, it supports the standard use-cases of joint or stacked 3D as well as 1D reflected region analyses. It also supports computation of flux points for all cases. The usage of this new Analysis class is demonstrated in the hess tutorial.

Following the proposal in PIG 16 - Gammapy package structure the subpackages gammapy.background and gammapy.image were removed. Existing functionality was moved to the gammapy.cube and gammapy.spectrum subpackages.

A new subpackage gammapy.modeling subpackage as introduced. All spectral, spatial, temporal and combined models were moved to the new namespace and renamed following a consistent naming scheme. This provides a much clearer structure of the model types and hierarchy for users.

The SkyEllipse model was removed. Instead the GaussianSpatialModel as well as the DiskSpatialModel now support parameters for elongation. A bug that lead to an incorrect flux normalization of the PointSpatialModel at high latitudes was fixed. The default coordinate frame for all spatial models was changed to icrs. A new ConstantTemporalModel was introduced.

A new MapDataset.to_spectrum_dataset() method allows to reduce a map dataset to a spectrum dataset in a specified analysis region. The SpectrumDatasetOnOffStacker was removed and placed by a SpectrumDatasetOnOff.stack() and Datasets.stack_reduce() method. A SpectrumDataset.stack() method was also added.

Following PIG 13 - Gammapy dependencies and distribution the support for Python 3.5 was dropped with Gammapy v0.14. At the same time the versions of the required dependencies were updated to Numpy 1.16, Scipy 1.2, Astropy 3.2, Regions 0.5, Pyyaml 5.1, Click 7.0 and Jsonschema 3.0.


In alphabetical order by first name:

  • Atreyee Sinha

  • Axel Donath

  • Christoph Deil

  • Régis Terrier

  • Fabio Pintore

  • Quentin Remy

  • José Enrique Ruiz

  • Johannes King

  • Luca Giunti

  • Léa Jouvin

Pull requests#

This list is incomplete. Small improvements and bug fixes are not listed here.

See the complete Gammapy v0.14 merged pull requests list on GitHub.

  • [#2412] Remove model XML serialization (Quentin Remy)

  • [#2404] Clean up spectral model names (Christoph Deil)

  • [#2401] Clean up spatial model names (Christoph Deil)

  • [#2400] Clean up temporal model names (Christoph Deil)

  • [#2385] Change spatial model default frame to icrs (Christoph Deil)

  • [#2381] Add MapDataset.stack() (Atreyee Sinha)

  • [#2379] Cleanup WcsNDMap FITS convention handling (Axel Donath)

  • [#2378] Add support for 3D analysis in the high level interface (José Enrique Ruiz)

  • [#2377] Implement WcsGeom coord caching (Axel Donath)

  • [#2375] Adapt MapMakerObs to return a MapDataset (Atreyee Sinha)

  • [#2368] Add MapDataset.create() method (Atreyee Sinha)

  • [#2367] Fix SkyPointSource evaluation (Christoph Deil)

  • [#2366] Remove lon wrapping in spatial models (Christoph Deil)

  • [#2365] Remove gammapy/maps/measure.py (Christoph Deil)

  • [#2360] Add SpectrumDatasetOnOff.stack() (Régis Terrier)

  • [#2359] Remove BackgroundModels class (Axel Donath)

  • [#2358] Adapt MapMakerObs to also compute an EDispMap and PSFMap (Atreyee Sinha)

  • [#2356] Add SpectrumDataset.stack() (Régis Terrier)

  • [#2354] Move gammapy.utils.fitting to gammapy.modeling (Christoph Deil)

  • [#2351] Change OrderedDict to dict (Christoph Deil)

  • [#2347] Simplify EdispMap.stack() and PsfMap.stack() (Luca Giunti)

  • [#2346] Add SpectrumDatasetOnOff.create() (Régis Terrier)

  • [#2345] Add SpectrumDataset.create() (Régis Terrier)

  • [#2344] Change return type of WcsGeom.get_coord() to quantities (Axel Donath)

  • [#2343] Implement WcsNDMap.sample() and remove MapEventSampler (Fabio Pintore)

  • [#2342] Add zero clipping in MapEvaluator.apply_psf (Luca Giunti)

  • [#2338] Add model registries and Model.from_dict() method (Quentin Remy)

  • [#2335] Remove SpectrumAnalysisIACT class (José Enrique Ruiz)

  • [#2334] Simplify and extend background model handling (Axel Donath)

  • [#2330] Migrate SpectrumAnalysisIACT to the high level interface (José Enrique Ruiz)

  • [#2326] Fix bug in the spectral gaussian model evaluate method (Léa Jouvin)

  • [#2323] Add high level Config and Analysis classes (José Enrique Ruiz)

  • [#2321] Dissolve gammapy.image (Christoph Deil)

  • [#2320] Dissolve gammapy.background (Christoph Deil)

  • [#2314] Add datasets serialization (Quentin Remy)

  • [#2313] Add elongated gaussian model (Luca Giunti)

  • [#2308] Use parfive in gammapy download (José Enrique Ruiz)

  • [#2292] Implement MapDataset.to_spectrum_dataset() method (Régis Terrier)

  • [#2279] Update Gammapy packaging, removing astropy-helpers (Christoph Deil)

  • [#2274] PIG 16 - Gammapy package structure (Christoph Deil)

  • [#2219] PIG 12 - High level interface (José Enrique Ruiz)

  • [#2218] PIG 13 - Gammapy dependencies and distribution (Christoph Deil)

  • [#2136] PIG 9 - Event sampling (Fabio Pintore)