https://github.com/juliuste/sainte_lague.rs

Sainte-Laguë method for seat distribution used in multiple parliamentary elections around the world.
https://github.com/juliuste/sainte_lague.rs

election library

Last synced: 3 months ago
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Sainte-Laguë method for seat distribution used in multiple parliamentary elections around the world.

• Host: GitHub
• URL: https://github.com/juliuste/sainte_lague.rs
• Owner: juliuste
• License: isc
• Created: 2020-05-24T10:46:09.000Z (about 5 years ago)
• Default Branch: main
• Last Pushed: 2022-05-20T22:13:24.000Z (about 3 years ago)
• Last Synced: 2025-03-23T04:41:13.416Z (4 months ago)
• Topics: election, library
• Language: Rust
• Homepage:
• Size: 17.6 KB
• Stars: 3
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: license

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README

        
# sainte_lague

A rust implementation of the **[Sainte-Laguë](https://en.wikipedia.org/wiki/Webster/Sainte-Lagu%C3%AB_method)** (also known as **Webster** or **Schepers**) method. Parliament seat allocation algorithm used in multiple countries such as Germany, Latvia, New Zealand etc…

*Attention: Since some countries (like Latvia or Norway) use a modification of the algorithm instead of this vanilla version, you should check your country's electoral legislature. Furthermore, I don't take any responsibility for the accuracy of the calculated numbers, even though I'm pretty confident with my implementation.*

[![Crate Version](https://img.shields.io/crates/v/sainte_lague.svg)](https://crates.io/crates/sainte_lague)

[![License](https://img.shields.io/github/license/juliuste/sainte_lague.rs.svg?style=flat)](license)

## Example

```rust

use sainte_lague::distribute;

// …

#[test]

fn german_bundestag_2013() {

	let votes = [41.5, 25.7, 8.6, 8.4];

	let seats = 631;

	let distribution = distribute(&votes, &seats, &false);

	let parliament = vec![311, 193, 64, 63];

	assert_eq!(distribution, Ok(parliament));

}

// …

```

**Full documentation on [docs.rs](https://docs.rs/sainte_lague/).**

## Similar projects

- [`largest-remainder-method`](https://crates.io/crates/largest-remainder-method) - A rust implementation of the Hare-Niemeyer / Hamilton / largest remainder method

## Contributing

If you found a bug or want to propose a feature, feel free to visit [the issues page](https://github.com/juliuste/sainte_lague.rs/issues).