monoid-std-deviation

Monoid Standard Deviation
=========================


Fantasy Land Compliant!

An implementation of the population standard deviation monoid in javascript

Example
-------
``javascript
var StdDeviation = require("monoid-std-deviation");

var list = [
new StdDeviation(52),
new StdDeviation(72),
new StdDeviation(42),
new StdDeviation(63),
new StdDeviation(65),
new StdDeviation(93)
];

var result = list.reduce(function(a, b) { return a.concat(b); });

console.log(result.value());
//prints 15.98697386415995
``