PySR Versions Save

High-Performance Symbolic Regression in Python and Julia

v0.16.9

4 months ago

What's Changed

New Contributors

Full Changelog: https://github.com/MilesCranmer/PySR/compare/v0.16.8...v0.16.9

v0.16.8

4 months ago

What's Changed

Full Changelog: https://github.com/MilesCranmer/PySR/compare/v0.16.7...v0.16.8

v0.16.7

4 months ago

What's Changed

Full Changelog: https://github.com/MilesCranmer/PySR/compare/v0.16.6...v0.16.7

v0.16.6

4 months ago

What's Changed

Full Changelog: https://github.com/MilesCranmer/PySR/compare/v0.16.5...v0.16.6

v0.16.5

5 months ago

What's Changed

Full Changelog: https://github.com/MilesCranmer/PySR/compare/v0.16.4...v0.16.5

v0.16.4

5 months ago

What's Changed

New Contributors

Full Changelog: https://github.com/MilesCranmer/PySR/compare/v0.16.3...v0.16.4

v0.16.3

8 months ago

What's Changed

Full Changelog: https://github.com/MilesCranmer/PySR/compare/v0.16.2...v0.16.3

v0.16.2

9 months ago

What's Changed

Backend changes

Backend changes: https://github.com/MilesCranmer/SymbolicRegression.jl/compare/v0.22.2...v0.22.3

Frontend changes: https://github.com/MilesCranmer/PySR/compare/v0.16.1...v0.16.2

v0.16.1

9 months ago

What's Changed

Backend changes

  • Expand aqua test suite (MilesCranmer/SymbolicRegression.jl#246) (@MilesCranmer)
  • Return more descriptive errors for poorly defined operators (MilesCranmer/SymbolicRegression.jl#247) (@MilesCranmer)

Backend Changelog: Diff since v0.22.1 PySR Changelog: https://github.com/MilesCranmer/PySR/compare/v0.16.0...v0.16.1

v0.16.0

9 months ago

What's Changed

Backend changes

  • (Algorithm modification) Evaluate on fixed batch when building per-population hall of fame in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/243
    • This only affects searches that use batching=true. It results in improved searches on large datasets, as the "winning expression" is not biased towards an expression that landed on a lucky batch.
    • Note that this only occurs within an iteration. Evaluation on the entire dataset still happens at the end of an iteration and those loss measurements are used for absolute comparison between expressions.
  • (Algorithm modification) Deprecates the fast_cycle feature in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/243. Use of this parameter will have no effect.
    • Was removed to ease maintenance burden and because it doesn't have a use. This feature was created early on in development as a way to get parallelism within a population. It is no longer useful as you can parallelize across populations.
  • Add Aqua.jl to test suite in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/245 for code quality control
  • CompatHelper: bump compat for DynamicExpressions to 0.12, (keep existing compat) in https://github.com/MilesCranmer/SymbolicRegression.jl/pull/242
    • Is able to avoids method invalidations when using operators to construct expressions manually by modifying a global constant mapping of operator => index, rather than @eval-ing new operators.
    • This only matters if you were using operators to build trees, like x1 + x2. All internal search code uses Node() explicitly to build expressions, so did not rely on method invalidation at any point.

Backend Changelog: https://github.com/MilesCranmer/SymbolicRegression.jl/compare/v0.21.5...v0.22.1

PySR Changelog: https://github.com/MilesCranmer/PySR/compare/v0.15.4...v0.16.0