99 lines
4.1 KiB
Markdown
99 lines
4.1 KiB
Markdown
# Changelog
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All notable changes to this project will be documented in this file.
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The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
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and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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## Unreleased
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- The `serde1` feature has been renamed `serde` (#1477)
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- Fix panic in Binomial (#1484)
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- Move some of the computations in Binomial from `sample` to `new` (#1484)
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- Add Kolmogorov Smirnov test for sampling of `Normal` and `Binomial` (#1494)
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### Added
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- Add plots for `rand_distr` distributions to documentation (#1434)
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- Add `PertBuilder`, fix case where mode ≅ mean (#1452)
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## [0.5.0-alpha.1] - 2024-03-18
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- Target `rand` version `0.9.0-alpha.1`
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## [0.5.0-alpha.0] - 2024-02-18
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This is a pre-release. To depend on this version, use `rand_distr = "=0.5.0-alpha.0"` to prevent automatic updates (which can be expected to include breaking changes).
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### Additions
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- Make distributions comparable with `PartialEq` (#1218)
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- Add `WeightedIndexTree` (#1372)
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### Changes
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- Target `rand` version `0.9.0-alpha.0`
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- Remove unused fields from `Gamma`, `NormalInverseGaussian` and `Zipf` distributions (#1184)
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This breaks serialization compatibility with older versions.
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- `Dirichlet` now uses `const` generics, which means that its size is required at compile time (#1292)
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- The `Dirichlet::new_with_size` constructor was removed (#1292)
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### Fixes
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- Fix Knuth's method so `Poisson` doesn't return -1.0 for small lambda (#1284)
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- Fix `Poisson` distribution instantiation so it return an error if lambda is infinite (#1291)
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- Fix Dirichlet sample for small alpha values to avoid NaN samples (#1209)
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- Fix infinite loop in `Binomial` distribution (#1325)
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## [0.4.3] - 2021-12-30
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- Fix `no_std` build (#1208)
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## [0.4.2] - 2021-09-18
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- New `Zeta` and `Zipf` distributions (#1136)
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- New `SkewNormal` distribution (#1149)
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- New `Gumbel` and `Frechet` distributions (#1168, #1171)
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## [0.4.1] - 2021-06-15
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- Empirically test PDF of normal distribution (#1121)
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- Correctly document `no_std` support (#1100)
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- Add `std_math` feature to prefer `std` over `libm` for floating point math (#1100)
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- Add mean and std_dev accessors to Normal (#1114)
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- Make sure all distributions and their error types implement `Error`, `Display`, `Clone`,
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`Copy`, `PartialEq` and `Eq` as appropriate (#1126)
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- Port benchmarks to use Criterion crate (#1116)
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- Support serde for distributions (#1141)
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## [0.4.0] - 2020-12-18
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- Bump `rand` to v0.8.0
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- New `Geometric`, `StandardGeometric` and `Hypergeometric` distributions (#1062)
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- New `Beta` sampling algorithm for improved performance and accuracy (#1000)
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- `Normal` and `LogNormal` now support `from_mean_cv` and `from_zscore` (#1044)
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- Variants of `NormalError` changed (#1044)
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## [0.3.0] - 2020-08-25
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- Move alias method for `WeightedIndex` from `rand` (#945)
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- Rename `WeightedIndex` to `WeightedAliasIndex` (#1008)
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- Replace custom `Float` trait with `num-traits::Float` (#987)
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- Enable `no_std` support via `num-traits` math functions (#987)
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- Remove `Distribution<u64>` impl for `Poisson` (#987)
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- Tweak `Dirichlet` and `alias_method` to use boxed slice instead of `Vec` (#987)
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- Use whitelist for package contents, reducing size by 5kb (#983)
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- Add case `lambda = 0` in the parametrization of `Exp` (#972)
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- Implement inverse Gaussian distribution (#954)
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- Reformatting and use of `rustfmt::skip` (#926)
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- All error types now implement `std::error::Error` (#919)
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- Re-exported `rand::distributions::BernoulliError` (#919)
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- Add value stability tests for distributions (#891)
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## [0.2.2] - 2019-09-10
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- Fix version requirement on rand lib (#847)
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- Clippy fixes & suppression (#840)
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## [0.2.1] - 2019-06-29
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- Update dependency to support Rand 0.7
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- Doc link fixes
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## [0.2.0] - 2019-06-06
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- Remove `new` constructors for zero-sized types
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- Add Pert distribution
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- Fix undefined behavior in `Poisson`
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- Make all distributions return `Result`s instead of panicking
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- Implement `f32` support for most distributions
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- Rename `UnitSphereSurface` to `UnitSphere`
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- Implement `UnitBall` and `UnitDisc`
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## [0.1.0] - 2019-06-06
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Initial release. This is equivalent to the code in `rand` 0.6.5.
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