Karmarkar-Karp number partitioning

Implements the Karmarkar-Karp differencing algorithm in JavaScript/NodeJS.

Install

npm install karmarkar-karp

Usage

const KK = require('karmarkar-karp');

Both functions accept an array (of integers or objects). If an object array is passed, you can specify the property key in the object to use for comparison.

Returns an array KK.greedy(input_array, input_key): Implements the greedy algorithm

KK.LDM(input_array, input_key): Implements the least differencing method

Returns an object:

var result = { 
   A: [],
   Asum: 0,
   B: [],
   Bsum: 0,
   distance: 0
};

where A and B are the two partitioned arrays from the input array, as well as metadata on the partitioning (A's sum, B's sum, and the final distance between sets).

See tests/test.js for an example.