bradcater/moving_averages

This gem adds methods to the Array class to compute different types of moving averages.

MovingAverage

This gem adds methods to the Array class to compute different types of moving averages.

Installation

Add this line to your application's Gemfile:

gem 'moving_average'

And then execute:

$ bundle

Or install it yourself as:

$ gem install moving_average

Usage

To compute a simple moving average (SMA), you can use

a = [1, 2, 3, 4, 5]
a.simple_moving_average => 3

or

a.sma => 3

You could also find the SMA of the 3-element slice [1, 2, 3] of the Array using

a.sma(2, 3) => 2

or the 4-element slice [1, 2, 3, 4] by using

a.sma(3, 4) => 2.5

An exponential moving average (EMA), a smoothed moving average (SMMA), and a weighted moving average (WMA) may be computed in the same way.

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Added some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request