Changelog

Stockwell

Python package for time-frequency analysis through Stockwell transform.

Based on original code from NIMH MEG Core Facility.

  1. 2021-2026 Claudio Satriano satriano@ipgp.fr

Unreleased

  • Add support for Python 3.14

  • Minimum required Python version: 3.9

  • Move tests outside the package directory

  • Validate inputs: reject empty arrays and non-integer parameters

  • Fix FFTW static plan caching to prevent segfault at exit

  • New tests: input validation, kazemi window, roundtrip, chirp example

  • Fix Hilbert phase: avoid shifting the Hilbert transform in frequency when multiplying by the Gaussian window, so that the correct instantaneous phase is preserved in the Stockwell spectrum (issue #9)

  • Fix inverse Stockwell transform to match the phase-corrected forward transform

  • New tests: phase monotonicity and phase step

v1.2 - 2025-01-08

  • Add support for Python 3.13

  • Remove support for Python 3.8

v1.1.2 - 2024-05-22

  • Make it possible again to directly call functions from submodules, like it was in versions prior to v1.1. Example:

    import stockwell
stockwell.st.st(data, fmin, fmax)

v1.1.1 - 2024-05-21

  • Remove support for Python 3.6 and 3.7

  • Add support for Python 3.11 and 3.12

  • Support for Numpy 2.0!

  • Added a script to download and compile FFTW3

v1.1 - 2023-06-05

  • Use ctypes to wrap the modules written in C

  • License changed to GPLv3

v1.0.7 - 2022-07-27

  • Packages for Python 3.10 and macOS arm (M1, M2)

v1.0.6 - 2022-04-21

  • Fix for missing file in source distribution

v1.0.5 - 2022-04-21

  • New parameters for st.st(): gamma and win_type:

    • gamma can be used to tune the time and frequency resolutions of the S-transform.

    • win_type can be set to ‘gauss’ (default) and ‘kazemi’ (Kazemi, 2014)

v1.0.4 - 2021-11-04

  • Use versioneer to generate package version

  • Add tests

v1.0.3 - 2021-09-15

  • Automated wheel building and deploy to PyPI

v1.0.2 - 2021-09-15

  • Updated install instructions in README

  • Copy FFTW3 dynamic library into macOS wheel

v1.0.1 - 2021-09-15

  • Add numpy dependency

v1.0 - 2021-09-15

  • Initial release