rand/rand_distr/CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

Unreleased

• The serde1 feature has been renamed serde (#1477)
• Fix panic in Binomial (#1484)
• Move some of the computations in Binomial from sample to new (#1484)
• Add Kolmogorov Smirnov test for sampling of Normal and Binomial (#1494)

Added

• Add plots for rand_distr distributions to documentation (#1434)
• Add PertBuilder, fix case where mode ≅ mean (#1452)

[0.5.0-alpha.1] - 2024-03-18

• Target rand version 0.9.0-alpha.1

[0.5.0-alpha.0] - 2024-02-18

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).

Additions

• Make distributions comparable with PartialEq (#1218)
• Add WeightedIndexTree (#1372)

Changes

• Target rand version 0.9.0-alpha.0
• Remove unused fields from Gamma, NormalInverseGaussian and Zipf distributions (#1184) This breaks serialization compatibility with older versions.
• Dirichlet now uses const generics, which means that its size is required at compile time (#1292)
• The Dirichlet::new_with_size constructor was removed (#1292)

Fixes

• Fix Knuth's method so Poisson doesn't return -1.0 for small lambda (#1284)
• Fix Poisson distribution instantiation so it return an error if lambda is infinite (#1291)
• Fix Dirichlet sample for small alpha values to avoid NaN samples (#1209)
• Fix infinite loop in Binomial distribution (#1325)

[0.4.3] - 2021-12-30

• Fix no_std build (#1208)

[0.4.2] - 2021-09-18

• New Zeta and Zipf distributions (#1136)
• New SkewNormal distribution (#1149)
• New Gumbel and Frechet distributions (#1168, #1171)

[0.4.1] - 2021-06-15

• Empirically test PDF of normal distribution (#1121)
• Correctly document no_std support (#1100)
• Add std_math feature to prefer std over libm for floating point math (#1100)
• Add mean and std_dev accessors to Normal (#1114)
• Make sure all distributions and their error types implement Error, Display, Clone, Copy, PartialEq and Eq as appropriate (#1126)
• Port benchmarks to use Criterion crate (#1116)
• Support serde for distributions (#1141)

[0.4.0] - 2020-12-18

• Bump rand to v0.8.0
• New Geometric, StandardGeometric and Hypergeometric distributions (#1062)
• New Beta sampling algorithm for improved performance and accuracy (#1000)
• Normal and LogNormal now support from_mean_cv and from_zscore (#1044)
• Variants of NormalError changed (#1044)

[0.3.0] - 2020-08-25

• Move alias method for WeightedIndex from rand (#945)
• Rename WeightedIndex to WeightedAliasIndex (#1008)
• Replace custom Float trait with num-traits::Float (#987)
• Enable no_std support via num-traits math functions (#987)
• Remove Distribution<u64> impl for Poisson (#987)
• Tweak Dirichlet and alias_method to use boxed slice instead of Vec (#987)
• Use whitelist for package contents, reducing size by 5kb (#983)
• Add case lambda = 0 in the parametrization of Exp (#972)
• Implement inverse Gaussian distribution (#954)
• Reformatting and use of rustfmt::skip (#926)
• All error types now implement std::error::Error (#919)
• Re-exported rand::distributions::BernoulliError (#919)
• Add value stability tests for distributions (#891)

[0.2.2] - 2019-09-10

• Fix version requirement on rand lib (#847)
• Clippy fixes & suppression (#840)

[0.2.1] - 2019-06-29

• Update dependency to support Rand 0.7
• Doc link fixes

[0.2.0] - 2019-06-06

• Remove new constructors for zero-sized types
• Add Pert distribution
• Fix undefined behavior in Poisson
• Make all distributions return Results instead of panicking
• Implement f32 support for most distributions
• Rename UnitSphereSurface to UnitSphere
• Implement UnitBall and UnitDisc

[0.1.0] - 2019-06-06

Initial release. This is equivalent to the code in rand 0.6.5.