v0.17.2

What's Changed

• All cell state in bio image paper by @chris-soelistyo in #560
• Refactor update_backend.yml workflow by @sefffal in #562
• Limit to Julia 1.6.7-1.10.0 and 1.10.3+ by @MilesCranmer in #565

New Contributors

• @chris-soelistyo made their first contribution in #560
• @sefffal made their first contribution in #562

Full Changelog: v0.17.1...v0.17.2

v0.17.1

What's Changed

• Fix y_units bug by @MilesCranmer in #545

Full Changelog: v0.17.0...v0.17.1

v0.17.0

What's Changed

• Bump docker/build-push-action from 3 to 5 by @dependabot in #510
• Bump actions/cache from 3 to 4 by @dependabot in #526
• Update colab notebook to use juliaup by @MilesCranmer in #531
• Bump peter-evans/create-pull-request from 5 to 6 by @dependabot in #539
• (BREAKING) Rewrite Julia interface with PyJulia -> JuliaCall; other changes by @MilesCranmer @cjdoris @mkitti in #535

Detailed changes from #535

• (BREAKING) Changed PyJulia with JuliaCall
  • Need to change eval -> seval
  • Manually converting to Vector when calling SymbolicRegression.jl functions (otherwise would get passed as PyList{Any}; see JuliaPy/PythonCall.jl#441)
  • Wrapped equation_search code with jl.PythonCall.GC.disable() to avoid multithreading-related segfaults (JuliaPy/PythonCall.jl#298)
  • Manually convert np.str_ to str before passing to variable_names, otherwise it becomes a PyArray and not a String (might be worth adding a workaround, it seems like PyJulia does this automatically)
• (BREAKING) Julia is now installed automatically when you import pysr (via JuliaCall)
• (BREAKING) The user no longer needs to run python -m pysr install. The install process is done by JuliaCall at import time.
  • Removed code related to pysr.install() and python -m pysr install because JuliaCall now handles this.
  • python -m pysr install will not give a warning and do nothing.
• (BREAKING) Remove the feynman problems dataset. Didn't seem good to have a dataset within a library itself.
• (BREAKING) Deprecated julia_project argument (ignored; no effect). The user now needs to set this up by customizing juliapkg.json. See updated documentation for instructions.
• (BREAKING) Switch from python -m pysr.test [test] to python -m pysr test [test].
• Switches to pyproject.toml for building rather than setup.py. However, setup.py install should still work.
• Dependencies are now managed by pyjuliapkg rather than the custom code we made. Simplifies things a lot!
• Rather than storing the raw julia variables in PySRRegressor, I am now storing a serialized version of them. This means you can now pickle the search state and warm-start the search from a file, in another Python process!
  • Not breaking! Because self.raw_julia_state_ will deserialize it automatically for you
• SymbolicRegression is now available to import from PySR:

from pysr import SymbolicRegression as SR
x1 = SR.Node(feature=1)  # Create expressions manually

• SymbolicRegression options are accessible in <model>.julia_options_ (generated from a serialized format for pickle safety) so that the user can call a variety of functions in SymbolicRegression.jl directly.
• Deprecated various kwargs to match SymbolicRegression.jl (old names will still work, so this is not breaking):
  • ncyclesperiteration => ncycles_per_iteration
  • loss => elementwise_loss
  • full_objective => loss_function
• Fixes Jupyter printing by automatically loading the juliacall.ipython extension at import time
• Adds Zygote.jl to environment by default
• Does unittesting on an example Jupyter notebook

Full Changelog: v0.16.9...v0.17.0

v0.16.9

What's Changed

• Swap operands mutation by @foxtran in #512

New Contributors

• @foxtran made their first contribution in #512

Full Changelog: v0.16.8...v0.16.9

v0.16.8

What's Changed

• Install typing_extensions for compatibility with Python 3.7 by @MilesCranmer in #497
• Create dependabot.yml by @MilesCranmer in #500
• Fix docker CI nightly by @MilesCranmer in #499
• Enforce upper bound compats by @MilesCranmer in #498

Full Changelog: v0.16.7...v0.16.8

v0.16.7

What's Changed

• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #495
• Warn the user on Python 3.12 by @MilesCranmer in #496

Full Changelog: v0.16.6...v0.16.7

v0.16.6

What's Changed

• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #488
• Add parameter for specifying --heap-size-hint on spawned Julia processes by @MilesCranmer in #493

Full Changelog: v0.16.5...v0.16.6

v0.16.5

What's Changed

• Add more piecewise operators by @MilesCranmer in #486

Full Changelog: v0.16.4...v0.16.5

v0.16.4

What's Changed

• Requesting addition of paper to research examples by @tmengel in #415
• Incorporate pre-commit hooks by @MilesCranmer in #425
• Refactor sympy and export functionality by @MilesCranmer in #427
• Refactor utility functions in sr.py by @MilesCranmer in #428
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #431
• Add paper "Discovery of a Planar Black Hole Mass Scaling Relation for Spiral Galaxies" by @ZehaoJin in #437
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #440
• Added "min" and "max" sympy mapping by @tanweer-mahdi in #473
• Added "round" operator in the Sympy mappings by @tanweer-mahdi in #474
• [pre-commit.ci] pre-commit autoupdate by @pre-commit-ci in #446
• Automated update to backend: v0.22.5 by @MilesCranmer in #482

New Contributors

• @tmengel made their first contribution in #415
• @ZehaoJin made their first contribution in #437
• @tanweer-mahdi made their first contribution in #473

Full Changelog: v0.16.3...v0.16.4

v0.16.3

What's Changed

• Automated update to backend: v0.22.4 by @MilesCranmer in #413
  • Fixes world age issue

Full Changelog: v0.16.2...v0.16.3