level-average

Calculate rolling averages in a LevelDB.

level-average

Calculate rolling averages in a LevelDB.

Store and retrieve rating information:

var level = require('level');
var sub = require('level-sublevel');
var Avg = require('level-average');
 
var db = sub(level(__dirname + '/db'));
var averages = Avg(db);
 
averages.push('rating', 2).push('rating', 4);
 
// then, later on: 
averages.get('rating', function(errvalue) {
  console.log('rating: %s', value);
  // => rating: 3 
});

Create a new averages db. Make sure your db has been given the powers of level-sublevel.

Push weight onto the average for prefix.

Through id you can make some weights overwrite others. Say you let users rate articles in your site, you only would want each user's rating to count one. So, when you use the user's id as id, her rating will only count once.

Get the current average for prefix.

With npm do:

npm install level-average

(MIT)

Copyright (c) 2013 Julian Gruber <julian@juliangruber.com>

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:

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