gaussian.js

var sum = require('lodash.sum');

module.exports = function gaussian(ns) {
	var n = ns.length;
	var mean = sum(ns) / n;
	var d = ns.map(a => Math.pow(mean - a, 2));
	var stdev = Math.sqrt(sum(d) / n);
	var max = Math.max.apply(Math, ns);
	var min = Math.min.apply(Math, ns);
	return {mean, stdev, n, max, min};
};