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CHANGELOG-unreleased.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project, at least loosely, adheres to Semantic Versioning.

This file contains the unreleased changes to the codebase. See CHANGELOG.md for the released changes.

Unreleased

Changed

  • Moved get_derived_params to timing_model
  • check_ephemeris_connection CI test no longer requires access to static NANOGrav site
  • TimingModel.compare() now calls change_binary_epoch().

Added

  • Added numdifftools to setup.cfg to match requirements.txt
  • Documentation: Added convert_parfile to list of command-line tools in RTD
  • DDH binary model
  • function pint.utils.xxxselections to do DMX-style selections for any parameter name
  • Plot model DM in pintk
  • More tests for pintk
  • Maximum likelihood fitting for ECORR
    • is_time_correlated class attribute in correlated NoiseComponents
    • has_time_correlated_errors property in TimingModel
    • Residuals._calc_ecorr_chi2() method for fast chi2 computation using Sherman-Morrison identity
    • pint.utils.sherman_morrison_dot and pint.utils.woodbury_dot
    • Refactored repeated code out of Residuals.calc_phase_mean and Residuals.calc_time_mean
    • Simplified Residuals._calc_gls_chi2() so that it uses Woodbury identity directly
    • Refactored WLS chi2 code out of Residuals.calc_chi2() into a new function Residuals._calc_wls_chi2()
    • Residuals.d_lnlikelihood_d_whitenoise_param will throw a NotImplementedError when correlated noise is present.
    • DownhillFitter._fit_noise() doesn't use derivatives when correlated noise is present.
    • Documentation: Noise fitting example notebook.
  • freeze_params option in wavex_setup and dmwavex_setup
  • plrednoise_from_wavex, pldmnoise_from_dmwavex, and find_optimal_nharms functions

Fixed

  • MCMC_walkthrough notebook now runs
  • Fixed runtime data README
  • Fixed derived_params when OMDOT has 0 uncertainty
  • model.find_empty_masks will now also look at DMX and SWX parameters
  • Fixed make_fake_toas_fromtim
  • Use Hessian instead of Hessdiag in DownhillFitter._fit_noise; compute noise parameter uncertainties only once in DownhillFitter.fit_toas.
  • Consistent naming in TimingModel.get_params_mapping()
  • Better exceptions for unsupported/unimplemented binary models (BTX, MSS, etc.)
  • Emit warnings when WaveX/DMWaveX is used together with other representations of red/DM noise
  • get_observatory() no longer overwrites include_gps and include_bipm of Observatory objects unless explicitly stated (BIPM and GPS clock corrections no longer incorrectly applied to BAT TOAs).

Removed