Mathstats

Mathstats is a simple statistics library.

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])

$ gem install mathstats

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])

• mean, average
• standard_deviation
• sum
• variance