Module: Nuggets::Array::StandardDeviationMixin

Included in:

Array

Defined in:

lib/nuggets/array/standard_deviation_mixin.rb

Class Method Summary

• .included(base) ⇒ Object

Instance Method Summary

• #standard_deviation(&block) ⇒ Object (also: #std)

  call-seq: array.standard_deviation => aFloat.

Class Method Details

.included(base) ⇒ Object

# File 'lib/nuggets/array/standard_deviation_mixin.rb', line 33

def self.included(base)
  base.send :include, Nuggets::Array::VarianceMixin
end

Instance Method Details

#standard_deviation(&block) ⇒ Object Also known as: std

call-seq:

array.standard_deviation => aFloat

Calculates the standard deviation of the values in array.

# File 'lib/nuggets/array/standard_deviation_mixin.rb', line 42

def standard_deviation(&block)
  ::Math.sqrt(variance(&block))
end