Changelog

This page is a changelog for releases of Fermipy.

0.10.0 (07/03/2016)

  • Implement support for more spectral models (DMFitFunction, EblAtten, FileFunction, Gaussian).
  • New options (outdir_regex and workdir regex) for fine-grained control over input/output file staging.
  • Add offset_roi_edge to source dictionary. Defined as the distance from the source position to the edge of the ROI (< 0 = inside the ROI, > 0 = outside the ROI).
  • Add new variables in fit output (edm, fit_status).
  • Add new package scripts (fermipy-collect-sources, fermipy-cluster-sources).
  • Various refactoring and improvements in code for dealing with castro data.
  • Add MODEL_FLUX and PARAMS HDUs to SED FITS file. Many new elements added SED output dictionary.
  • Support NEWTON fitter with the same interface as MINUIT and NEWMINUIT. Running fit with optimizer = NEWTON will use the NEWTON fitter where applicable (only free norms) and MINUIT otherwise. The optimizer argument to sed, extension, and localize can be used to override the default optimizer at runtime. Note that the NEWTON fitter is only supported by ST releases after 11-01-01.

0.9.0 (05/25/2016)

  • Bug fixes and various refactoring in TSCube and CastroData. Classes for reading and manipulating bin-by-bin likelihoods are now moved to the castro module.
  • Rationalized naming conventions for energy-related variables. Properties and method arguments with units of the logarithm of the energy now consistently contain log in the name.
    • energies now returns bin energies in MeV (previously it returned logarithmic energies). log_energies can be used to access logarithmic bin energies.
    • Changed erange parameter to loge_bounds in the methods that accept an energy range.
    • Changed the units of emin, ectr, and emax in the sed output dictionary to MeV.
  • Add more columns to the FITS source catalog file generated by write_roi. All float and string values in the source dictionary are now automatically included in the FITS file. Parameter values, errors, and names are written to the param_values, param_errors, and param_names vector columns.
  • Add package script for dispatching batch jobs to LSF (fermipy-dispatch).
  • Fixed some bugs related to handling of unicode strings.

0.8.0 (05/18/2016)

  • Added new variables to source dictionary:
    • Likelihood scan of source normalization (dloglike_scan, eflux_scan, flux_scan).
    • Source localization errors (pos_sigma, pos_sigma_semimajor, pos_sigma_semiminor, pos_r68, pos_r95, pos_r99, pos_angle). These are automatically filled when running localize or find_sources.
  • Removed camel-case in some source variable names.
  • Add cacheft1 option to data disable caching FT1 files. Cacheing is still enabled by default.
  • Support FITS file format for preliminary releases of the 4FGL catalog.
  • Add __future__ statements throughout to ensure forward-compatibility with python3.
  • Reorganize utility modules including those for manipulation of WCS and healpix images.
  • Various improvements and refactoring in localize. This method now moved to the sourcefind module.
  • Add new global parameter llscan_pts in gtlike to define the number of likelihood evaluation points.
  • Write output of sed to a FITS file in the Likelihood SED format. More information about the Likelihood SED format is available on this page.
  • Write ROI model to a FITS file when calling write_roi. This file contains a BINTABLE with one row per source and uses the same column names as the 3FGL catalog file to describe spectral parameterizations. Note that this file currently only contains a subset of the information available in the numpy output file.
  • Reorganize classes and methods in sed for manipulating and fitting bin-by-bin likelihoods. Spectral functions moved to a dedicated spectrum module.
  • Write return dictionary to a numpy file in residmap and tsmap.

0.7.0 (04/19/2016)

  • some features