Module: Math::Stats

Defined in:

lib/ruuuby/math/stats/stats.rb,
lib/ruuuby/math/stats/descriptive.rb,
lib/ruuuby/math/stats/probability.rb,
lib/ruuuby/math/stats/time_series.rb,
lib/ruuuby/math/stats/statistical_learning.rb

Defined Under Namespace

Modules: Descriptive, Probability, StatisticalLearning, TimeSeries

Class Method Summary

• .arithmetic_mean(*vals) ⇒ Float, Numeric (also: μ)

  ‣ notice: all data points share equal weight ‣ thus it does NOT take into account the evenness of the data.

• .median(*vals) ⇒ Float, Numeric (also: x̃)

Class Method Details

.arithmetic_mean(*vals) ⇒ Float, Numeric Also known as: μ

‣ notice: all data points share equal weight

Parameters:

• vals (*)

Returns:

• (Float, Numeric) —

  Σ(vals) / vals.length

# File 'lib/ruuuby/math/stats/stats.rb', line 13

def self.arithmetic_mean(*vals)
  

.median(*vals) ⇒ Float, Numeric Also known as: x̃

Parameters:

• vals (*)

Returns:

• (Float, Numeric)

See Also:

• solution credit: https://stackoverflow.com/questions/14859120/calculating-median-in-ruby

# File 'lib/ruuuby/math/stats/stats.rb', line 24

def self.median(*vals)