• Replaces the RTD docs theme with pydata
• Fixes more version compatibility issues

• Fixes some compatibility issues with recent updates to dependencies.
• GPs using celerite2.theano are now deprecated.
• Python 3.7 has been dropped from the testing workflow and Python 3.10 has been added.

• More API changes, now wrapping xarray.DataArray to define TSeries, FSeries and TFSeries objects.
• GPs are updated and now work with george and celerite2 using emcee and celerite2.theano using pymc3.
• Methods and docs were updated to work with the new core objects.
• Python 3.6 has been dropped from the testing workflow and Python 3.9 has been added.
• CompositeSpectrum added to periodicity.timefrequency module.

Basically the same code as the previous version (v1.0b2), bumping merely due to a slight mistake I made with PyPI.

Big changes in the overall structure of the package, preparing for the release of v1.0.0!

In terms of development,

• testing is now automated with tox,
• other tools (black, isort, coverage) are configured in a single pyproject.toml, and
• requirements.txt was replaced by a Pipfile and a Pipfile.lock for reproducible builds with pipenv

And in terms of the API,

• now everything revolves around periodicity.core.Timeseries objects, which include several common utilities,
• methods may return periodicity.core.Periodogram objects, which have both frequency and period attributes, and
• in the near future, this will be extended to also include Spectrogram objects for time-frequency methods.

Introduces:

• Wavelet Power Spectrum with PyWavelets (periodicity.spectral.wavelet)
• Empirical Mode Decomposition and the Hilbert-Huang Transform (periodicity.spectral.emd and periodicity.spectral.hht)
• Phase Dispersion Minimization (periodicity.spectral.pdm and periodicity.spectral.pdm2)
• Many other useful functions:
  • periodicity.utils.find_extrema
  • periodicity.utils.find_zero_crossings
  • periodicity.utils.get_envelope
  • periodicity.utils.get_noise

Also, various minor bugfixes and a first documentation release at https://periodicity.readthedocs.io

• enables stringlength smoothing and use of uncertainties in lombscargle
• uses tqdm.auto instead of tqdm