v0.15.0

What's Changed

• Backend version update in #389. Includes:
  • Dimensional analysis (see docs examples page)
  • Printing improvements
  • Many misc changes (see below)

Backend Changes

• MilesCranmer/SymbolicRegression.jl#228 and MilesCranmer/SymbolicRegression.jl#230 and MilesCranmer/SymbolicRegression.jl#231 and MilesCranmer/SymbolicRegression.jl#235
  • Dimensional analysis (228)
    • Allows you to (softly) constrain discovered expressions to those that respect physical dimensions
    • Specify X_units and y_units (see https://astroautomata.com/PySR/examples/#10-dimensional-constraints)
  • Printing improvements (228)
    • By default, only 5 significant digits are now printed, rather than the entire float. You can change this with the print_precision option.
    • In the default printed equations, x₁ is used rather than x1.
    • y = is printed at the start (or y₁ = for multi-output). With units this becomes, for example, y[kg] =.
  • Misc
    • Easier to convert from MLJ interface to SymbolicUtils (via node_to_symbolic(::Node, ::AbstractSRRegressor)) (228)
    • Improved precompilation (228)
    • Various performance and type stability improvements (228)
    • Inlined the recording option to speedup compilation (230)
    • Updated Julia tutorials to use MLJ rather than low-level interface (228)
    • Moved JSON3.jl to extension (231)
    • Use PackageExtensionsCompat.jl over Requires.jl (231)
    • Require LossFunctions.jl to be 0.10 (231)
    • Batching inside optimization loop + batching support for custom objectives by (235)
    • Update docker defaults: Julia=1.9.1; Python=3.10.11 in #371

Backend Changelog: MilesCranmer/SymbolicRegression.jl@v0.20.0...v0.21.0

PySR Changelog: v0.14.3...v0.15.0

v0.14.3

What's Changed

• Self-repairing PyCall installation to lower entrance barrier for new users by @MilesCranmer and @mkitti in #363

Full Changelog: v0.14.2...v0.14.3

v0.14.2

What's Changed

• Recommend user install with --enable-shared by @MilesCranmer in #352
• Automated update to backend: v0.19.1 by @MilesCranmer in #355

Backend

Diff since v0.19.0

Merged pull requests on backend:

• CompatHelper: bump compat for StatsBase to 0.34, (keep existing compat) (MilesCranmer/SymbolicRegression.jl#202) (@github-actions[bot])
• (Soft deprecation) change varMap to variable_names (MilesCranmer/SymbolicRegression.jl#219) (@MilesCranmer)
• (Soft deprecation) rename EquationSearch to equation_search (MilesCranmer/SymbolicRegression.jl#222) (@MilesCranmer)
• Fix equation splitting for unicode variables (MilesCranmer/SymbolicRegression.jl#223) (@MilesCranmer)

Full Changelog: v0.14.1...v0.14.2

v0.14.1

What's Changed

• Automated update to backend: v0.19.0 by @MilesCranmer in #340
  • ~30% faster startup time on first search (https://github.com/MilesCranmer/SymbolicRegression.jl/releases/tag/v0.19.0)
• Let user know when compilation is taking place by @MilesCranmer in #341

Full Changelog: v0.14.0...v0.14.1

v0.14.0

What's Changed

• Added CLI to run pysr.install() to install Julia dependencies by @w2ll2am in #298
  • Let's you install PySR with python -m pysr install rather than python -c 'import pysr; pysr.install()'
  • This CLI also has other options available (precompilation, Julia project name, etc.)

New Contributors

• @w2ll2am made their first contribution in #298

Full Changelog: v0.13.0...v0.14.0

v0.13.0

What's Changed

• Test Julia 1.9 by @MilesCranmer in #329
• Automated update to backend: v0.18.0 by @MilesCranmer in #331

Backend changes

Diff since v0.17.1

• Overload ^ if user passes explicitly (MilesCranmer/SymbolicRegression.jl#201) (@MilesCranmer)
• Upgrade DynamicExpressions to 0.8; LossFunctions to 0.10 (MilesCranmer/SymbolicRegression.jl#206) (@github-actions[bot])
• Show expressions evaluated per second (MilesCranmer/SymbolicRegression.jl#209) (@MilesCranmer)
• Cache complexity of expressions whenever possible (MilesCranmer/SymbolicRegression.jl#210) (@MilesCranmer)

Full Changelog: v0.12.3...v0.13.0

v0.12.3

What's Changed

• Highlight contributors by @MilesCranmer in #301
• Automated update to backend: v0.17.1 by @MilesCranmer in #320

Full Changelog: v0.12.2...v0.12.3

v0.12.2

What's Changed

• Add paper 'Electron Transfer Rules of Minerals under Pressure…' by @GCaptainNemo in #288
• Fix colab notebook example by @MilesCranmer in #295
• Add paper: "Data-Driven Equation Discovery of a Cloud Cover Parameterization" by @agrundner24 in #302
• Pass through enable_autodiff parameter by @MilesCranmer in #316

New Contributors

• @GCaptainNemo made their first contribution in #288
• @agrundner24 made their first contribution in #302

Full Changelog: v0.12.1...v0.12.2

v0.12.1

What's Changed

• Allow user to specify full objective functions by @MilesCranmer in #276

Full Changelog: v0.12.0...v0.12.1

v0.12.0

What's Changed

• Complex-valued expressions by @MilesCranmer in #281
• Various fixes in backend (see https://github.com/MilesCranmer/SymbolicRegression.jl/releases/tag/v0.16.0)

Full Changelog: v0.11.17...v0.12.0