326 lines
9.1 KiB
Markdown
326 lines
9.1 KiB
Markdown
# Changelog
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All notable changes to this project will be documented in this file.
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## 0.5.0 - 2026-09-08
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### Breaking Changes
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- feat!: name the unknown key, expose tail probabilities, flag short fits
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- refactor!: remove the factor-graph surface nothing used, add try_winner
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### Bug Fixes
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- fix(test): the ingestion-order property was comparing two truncated fits
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### Documentation
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- docs: record that the event log is the source of truth, and why
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### Features
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- feat: add UnknownKeys::Prior, and explain why there is no Skip
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- feat: add History::posterior_of for a linear combination of competitors
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- feat: add History::predict_margin for scored matchups
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- feat: add expected_variance_reduction for scored active learning
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### Styling
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- style: factor the event-pair type out of the reconvergence fixture
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- style: use arrays rather than vec! in the calibration fixture
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### Testing
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- test: pin that re-convergence is path-independent
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- test: calibrate the marginals against the exact posterior
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- test: pin what an additive model does to combined uncertainty
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## 0.4.2 - 2026-09-07
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### Bug Fixes
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- fix: replace the erfc approximation with libm, for free
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- fix: route every transcendental through libm, and combine sigmas with hypot
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### Miscellaneous Tasks
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- chore: Release trueskill-tt version 0.4.2
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### Testing
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- test: localise the erfc_inv tail residual to the caller's argument
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## 0.4.1 - 2026-09-07
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### Bug Fixes
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- fix: correct erfc_inv's sign error and keep evidence in log space
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### Miscellaneous Tasks
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- chore: Release trueskill-tt version 0.4.1
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### Testing
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- test: pin quality()'s N-group closed form, closing the README cross-check
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## 0.4.0 - 2026-09-07
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### Breaking Changes
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- feat!: N-team outcome prediction with draw mass, replacing the 2-team panic
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- refactor!: close the remaining API gaps from #21
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- fix!: apply competitor configuration whenever it is supplied
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### Bug Fixes
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- fix(release): skip the changelog hook during a dry run
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- fix: stop destroying tail precision in evidence and truncation
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- fix: reject convergence options that silently disable inference
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### Documentation
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- docs: correct drifted documentation and compile the README in CI
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### Features
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- feat: add expected information gain for active matchup selection
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- feat: let observers be shared, boxed, or borrowed
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### Miscellaneous Tasks
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- chore: Release trueskill-tt version 0.4.0
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## 0.3.0 - 2026-09-01
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### Breaking Changes
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- refactor!: make Competitor::message an Option, and compute_elapsed loud
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- refactor!: replace emptiness-as-sentinel with Option for results and weights
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- refactor!: remove ConvergenceReport::slices_skipped
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### Bug Fixes
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- fix: enforce EventBuilder weight/team length in release
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### Documentation
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- docs: complete the public API documentation contract
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### Features
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- feat: allow drift to vary per competitor via Member::with_drift_scale
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### Miscellaneous Tasks
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- chore: ignore proptest regression seed files
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- chore: Release trueskill-tt version 0.3.0
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### Performance
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- perf: stop cloning inference inputs in OwnedGame and ingestion
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- perf: make the per-slice SkillStore compact instead of dense
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### Testing
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- test: add property-based tests, a shared finiteness helper, and boundary inputs
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## 0.2.0 - 2026-08-27
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### Breaking Changes
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- refactor!: remove the inert online flag
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### Bug Fixes
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- fix: reject ties without draw probability; never report NaN as converged
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- fix(quality): support any number of rating groups
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- fix(evidence): accumulate in log space and floor the per-link value
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- fix(history): stop reprocessing the slice that was just appended to
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- fix(rayon): remove the aliasing unsafe from the parallel sweep
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- fix: close out four small issues and pin #27's repro
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### Documentation
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- docs: refresh README and CLAUDE.md; add ingest benchmark
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- docs: spec for filtered (forward-only) estimates
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- docs: implementation plan for filtered estimates
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- docs: state filtered accessor cost and evidence semantics precisely
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- docs(cargo): correct the licence note — kellnr does not require one
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### Features
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- feat: add filtered_log_evidence
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- feat: add filtered learning curves
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### Miscellaneous Tasks
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- chore: add CI, crate metadata, and crate-level documentation
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- chore: target releases at the private kellnr registry
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- chore: keep the 48 MB ATP dataset out of the published crate
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- chore: dual-license MIT OR Apache-2.0
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- chore: Release trueskill-tt version 0.2.0
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### Performance
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- perf(gaussian): drop the sqrt round-trip from variance-space operations
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### Refactor
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- refactor: unify convergence defaults, validate builders, clear dead code
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### Styling
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- style: make NaN rejection explicit in score_sigma validation
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### Testing
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- test: pin the invariants that make filtered estimates trustworthy
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## 0.1.2 - 2026-06-12
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### Bug Fixes
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- fix: release generated CHANGELOG at the wrong location
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- fix(gaussian): treat non-positive precision as improper in mu()/sigma()
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### Documentation
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- docs: spec for post-T4-MarginFactor tech debt cleanup
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- docs: implementation plan for post-T4-MarginFactor tech debt cleanup
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- docs: fix stale numerics in t4-margin-factor plan
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- docs: spec for game-local Damped EP
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- docs: implementation plan for game-local Damped EP
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- docs: spec for History → TimeSlice ConvergenceOptions plumbing
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- docs: implementation plan for History → TimeSlice plumbing
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- docs: spec for per-event score_sigma override
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- docs: implementation plan for per-event score_sigma override
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### Features
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- feat(gaussian): add damp_natural helper for EP damping
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- feat(convergence): add ConvergenceOptions::alpha damping field
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- feat(factor): add TruncFactor::propagate_with_alpha for EP damping
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- feat(factor): add MarginFactor::propagate_with_alpha for EP damping
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- feat(game): plumb ConvergenceOptions through to run_chain
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- feat(time_slice): inference callsites read self.convergence
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- feat(outcome): per-event score_sigma override on Outcome::Scored
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- feat(event_builder): expose scores_with_sigma fluent method
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### Miscellaneous Tasks
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- chore: Release trueskill-tt version 0.1.2
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### Refactor
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- refactor: dedupe Game::likelihoods and likelihoods_scored via run_chain
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- refactor: make BuiltinFactor::log_evidence match exhaustive
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- refactor(time_slice): add convergence field, rename iterate_to_convergence
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### Testing
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- test(game): integration tests for ConvergenceOptions behavior
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- test(history): end-to-end ConvergenceOptions propagation tests
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- test(history): end-to-end per-event score_sigma override tests
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## 0.1.1 - 2026-04-27
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### Miscellaneous Tasks
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- chore: Release trueskill-tt version 0.1.1
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### Other (unconventional)
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- T0 + T1 + T2: engine redesign through new API surface (#1)
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- T3: rayon-backed concurrency (opt-in) (#2)
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- T4 (MarginFactor): scored outcomes via Gaussian-margin EP evidence
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## 0.1.0 - 2026-04-23
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### Features
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- feat: added a Drift trait and a "default" ConstantDrift implementation
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### Miscellaneous Tasks
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- chore: added cliff.toml, release.toml and rustfmt.toml
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- chore: clean up
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- chore: make cargo release add CHANGELOG.md before commit
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- chore: do not publish
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### Other (unconventional)
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- Initial commit.
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- Begin working on batch.
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- Passing tests for Batch
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- Working on History struct. First test is passing.
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- More test passing for History
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- Added more functions to History
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- Remove Display impl, better to use Debug
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- Use flatten instead of flat_map
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- Handle case where there is no time
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- It works, or so it seems
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- Use PlayerIndex instead of String
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- Inline a lot of functions
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- Refactor some code
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- Refactor some stuff
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- Port from julia version instead
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- More things, better things, awesome
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- More tests, more code
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- More things, more tests
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- Fix tests
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- More tests
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- More tests
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- Added builder for History, and start migrating test to use builder instead.
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- Update test to use builder
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- Remove unused code
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- Use and Index struct instead of str and String for player id
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- Update example so now it works, and thats, well, good
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- Update test to use assert_ulps_eq
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- Fixed test
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- Change time to use i64 instead of u64
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- Small change
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- Clean up example
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- Update crates and added methods to get a key or all keys in an IndexMap
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- Added a get function to IndexMap
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- Agents doens't have to be behind a mutable reference in within_prior
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- Agents doens't have to be behind a mutable reference in within_priors
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- Refactor so we can see if there is any way to improve the performance
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- Fix clippy warning
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- More refactoring
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- Remove warnings and refactor some code
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- Added benchmark for Batch
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- Added default implementation for TeamMessage
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- Remove unused mut reference
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- Make it more rusty
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- More rustifying
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- Small refactor
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- Rename d to diff, and t to team
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- Added more links to readme
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- Fix broken link in README
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- Update crates
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- Clean up
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- Dry my eyes
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- Remove unnecessary allocations
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- Fix clippy warning
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- Refactor history
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- Rename variables
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- Move stuff around
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- Added quality function
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- Make quality a free standing function instead
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- Improve performance
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- Change assert to debug_assert
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- Added todo to readme, and documentation for quality function
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- Basic test for quality
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- Ignore temp folder
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- Update edition
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- Small changes for new 2024 edition
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- remove notepad
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- added benchmark
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### Styling
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- style: cargo fmt
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<!-- generated by git-cliff -->
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