Implements the Prüfer sequence algorithm in pure javascript, for space-efficient representation of trees using a unique sequence. Useful for generating random trees of data.
Here are some examples: 3. 3. 3. 4 4, 4, 4, 5
var prufer = require('prufer');
// to make a tree, supply a series of integers
var tree = prufer([3, 3, 3, 4]);
// you'll get back an array of edges
console.log(tree);
// --> [[3, 0], [3, 1], [3, 2], [4, 3], [4, 5]]Using with node:
npm install prufer
For the browser, use prufer.js:
<script src="prufer.js"></script>
<script>
var prufer = require('prufer');
prufer([3, 3, 3, 4]);
</script>Make sure you have Mocha installed:
npm install -g mocha
npm test
Please use github to report all bugs and feature requests at http://github.com/jleppert/prufer/issues.
Python Version & Good Overview
Copyright (c) 2014 Johnathan Leppert [email protected]
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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