stets

EMERGET! STETS!

Stets is a node.js library to do statistical analysis of date based data sets. This allows you get average etc. over the course of a month, week, year.

Installation

YE KEN INSTELL STETS WIT NPN

npm install --save stets

Usage

In all examples we assume that you loaded and constructed your Stets instance as following:

var Stets = require('stets')
  , stets = new Stets();

The Stets constructor can receive one argument which is used to configure the instance. The follow options are accepted:

• format The format in which the supplied dates are stored. The format that we accept is the same format as Momentjs uses (as that is parsing our dates).
• stats Configuration for the fast-stats module that we wrap.

Now that we have fully configured Stets instance we can start adding data.

Stets.push

We implement methods that are somewhat identical to arrays. So for adding data you need to the .push method. The only difference is that we require 2 arguments. The first argument is the date of the stat and the second is the value that needs to be stored.

stets.push(new Date(), 1);

Stets.unshift

Same above but it adds the stats to the beginning of internal set instead of at the end of it.

stets.unshift(require('moment')(), 424);

In this example we don't supply a Date instance but a moment instance, as that is also supported.

Stets.pop

Now that we've added data, we also need to be able to remove it. That is where stets.pop comes it. It removes the item from the end of the internal set and returns it the object that we stored.

The returned object contains data and date keys. date contains the supplied date instance while data stores assigned data.

stets.push(new Date(), 2);
var last = stets.pop();
 
console.log(last.data); // 2

Stets.shift

Just the like stets.pop method, but it returns the first item that we've added.

stets.push(new Date(), 1);
stets.push(new Date(), 2);
 
var first = stets.shift();
console.log(first.data); // 1

Stets.length

To see how many data points are currently store you can check the .length property.

console.log(stets.length); // 0
stets.push(new Date(), 1);
console.log(stets.length); // 1

Stets.reset

If you want to start over fresh again, you can completely nuke all the stored data using the stets.reset method.

console.log(stets.length); // 0
stets.push(new Date(), 1);
console.log(stets.length); // 1
stets.reset();
console.log(stets.length); // 0

License

MIT