class RandomVariateGenerator::NegativeBinomialVariate
Public Class Methods
new(params = {})
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# File lib/random_variate_generator/negative_binomial_variate.rb, line 4 def initialize(params = {}) if params[:probability_of_success] @probability_of_success = params[:probability_of_success] else raise InvalidParameterException.new "Parameter :probability_of_success no specified" end raise InvalidParameterException.new "Parameter :probability_of_success must be greater than 0" if @probability_of_success <= 0 if params[:number_of_success] @number_of_success = params[:number_of_success] else raise InvalidParameterException.new "Parameter :number_of_success no specified" end raise InvalidParameterException.new "Parameter :number_of_success must be greater than 0" if @number_of_success <= 0 end
Public Instance Methods
generate_value()
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# File lib/random_variate_generator/negative_binomial_variate.rb, line 19 def generate_value Random.negative_binomial( :probability_of_success => @probability_of_success, :number_of_success => @number_of_success) end