class RandomVariateGenerator::ExponentialVariate
Public Class Methods
new(params = {})
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# File lib/random_variate_generator/exponential_variate.rb, line 4 def initialize(params = {}) if params[:lambda] @lambda = params[:lambda] else raise InvalidParameterException.new "Parameter :lambda no specified" end raise InvalidParameterException.new "Parameter :lambda must be greater than 0" if @lambda <= 0 end
Public Instance Methods
generate_value()
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# File lib/random_variate_generator/exponential_variate.rb, line 13 def generate_value Random.exponential(:lambda => @lambda) end