class Statistics::Distribution::StandardNormal
Public Class Methods
new()
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Calls superclass method
Statistics::Distribution::Normal::new
# File lib/statistics/distribution/normal.rb, line 71 def initialize super(0, 1) # Mean = 0, Std = 1 end
Public Instance Methods
density_function(value)
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# File lib/statistics/distribution/normal.rb, line 75 def density_function(value) pow = (value**2)/2.0 euler = Math.exp(-pow) euler/Math.sqrt(2 * Math::PI) end