mathstats

= Mathstats

Mathstats is a simple statistics library.

== Goals

1. Support for basic statistics equations
2. No dependencies
3. Rails integration
4. Usable as a mixin: [4,8,15,16,23,42].variance
5. Usable as a library: Mathstats.variance([4,8,15,16,23,42])

== Installation

$ gem install mathstats

== Usage

require 'mathstats'

Mathstats.attach_to(Array) # => Array.send :include, Mathstats::Mixin [4,8,15,16,23,42].variance

Or if you don't want to mess with the Array class

Mathstats.variance([4,8,15,16,23,42])

== Methods available

• mean, average
• standard_deviation
• sum
• variance