Ipuch / majority-judgment-rust

Majority Judgment Library for Rust

Rust library to help deliberate using Majority Judgment.

The goal is to be scalable, reliable, fast and extensible. We therefore use a score-based algorithm whatsoever.

Example Usage

Collect the votes for each Candidate and provide them in the function majority_judgment as is:

// Declare a BTreeMap with the poll data
let mut poll_data : BTreeMap<String, Vec<u8> > = BTreeMap::new();

poll_data.insert("Pizza".to_string(), vec![0, 0, 3, 0, 2, 0, 3, 1, 2, 3]);
poll_data.insert("Chips".to_string(), vec![0, 1, 0, 2, 1, 2, 2, 3, 2, 3]);
poll_data.insert("Pasta".to_string(), vec![0, 1, 0, 1, 2, 1, 3, 2, 3, 3]);
poll_data.insert("Bread".to_string(), vec![0, 1, 2, 1, 1, 2, 1, 2, 2, 3]);

println!("Data: {:?}", poll_data);
println!("Results as a vector of tuple (Candidate, Rank): {:?}",majority_judgment(&poll_data));

This results in the following output:

Data: {"Bread": [0, 1, 2, 1, 1, 2, 1, 2, 2, 3], "Chips": [0, 1, 0, 2, 1, 2, 2, 3, 2, 3], "Pasta": [0, 1, 0, 1, 2, 1, 3, 2, 3, 3], "Pizza": [0, 0, 3, 0, 2, 0, 3, 1, 2, 3]}
Results as a vector of tuple (Candidate, Rank): [("Chips", 0), ("Pasta", 1), ("Bread", 2), ("Pizza", 3)]

License

MIT → Do whatever you want except complain.

Majority Judgment itself is part of the Commons, obviously.

Fund us

We'd love to invest more energy in Majority Judgment development.

Please consider funding us, every bit helps : https://www.paypal.com/donate/?hosted_button_id=QD6U4D323WV4S