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CHANGELOG.md

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Changelog

This file documents recent notable changes to this project. The format of this file is based on Keep a Changelog, and this project adheres to Semantic Versioning.

0.11.0 - 2024-08-07

Changed

  • Requires Rust 1.74 or newer.
  • Updated ndarray to 0.16.

0.10.0 - 2023-12-20

Changed

  • Instead of Float trait, FloatCore trait is used as a bound for T in BallTree and VantagePointTree.
  • Requires Rust 1.70 or newer.

0.9.0 - 2023-08-07

Added

  • Euclidean derives Eq.

Changed

  • Switched to edition 2021.
  • Requires Rust 1.64 or newer.

0.8.0 - 2022-04-18

Added

  • Add pairwise distance computation function.

Changed

  • Make fields of Node, BallTree accessible for user.
  • MSRV is changed to 1.53.0.

0.7.1 - 2021-07-06

Added

  • Implement Clone and Sync for Euclidean struct.

0.7.0 - 2021-06-23

Changed

  • Add Metric trait, use it for distance calculation instead of function pointer.
  • Add Euclidean struct, which implements Metric trait.

0.6.0 - 2021-03-29

Changed

  • Upgrade ndarray to 0.15.0
  • Requires Rust 1.49 or later.

0.5.2 - 2021-02-16

Changed

  • Fixed build on aarch64.

0.5.1 - 2020-12-30

Changed

  • Upgrade ndarray to 0.14.0

0.5.0 - 2020-08-20

Changed

  • BallTree and VantagePointTree accept an ndarray as a point.

Fixed

  • No longer panics when a coordinate is NaN; the distance from a point with NaN in its coordinate and another point is considered greater than the distance between any two points without NaN in their coordinates.
  • BallTree::query returns empty vectors, rather than panics, when k is zero.

0.4.0 - 2020-06-01

Added

  • A vantage point tree data structure to find nearest points.
  • BallTree accepts not only an f64 array but also an f32one.
  • BallTree::euclidean to create a ball tree withoug having to pass a distance metric as an argument.

Changed

  • The codinates of each point must be stored in a contiguous area in memory.
  • A distance metric is now a function, not a trait.

0.3.0 - 2020-04-17

Changed

  • The ownership of the input can be transferred to BallTree, which accepts both an owned array and a view.
  • An error is returned, rather than a panic, if an empty array is given to construct a BallTree.
  • query_one has been renamed query_nearest.
  • query returns indices and distances separately, so that data of the same type are stored together.

0.2.0 - 2020-04-09

Changed

  • BallTree takes ArrayBase as its input, instead of ArrayView, to allow more types in ndarray.

0.1.0 - 2019-11-20

Added

  • A ball tree data structure to find nearest neighbors.