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require 'distribution/beta/ruby'
require 'distribution/beta/gsl'
# no statistics2 functions for beta.
require 'distribution/beta/java'
module Distribution
# From Wikipedia:
# In probability theory and statistics, the beta distribution
# is a family of continuous probability distributions defined
# on the interval (0, 1) parameterized by two positive shape
# parameters, typically denoted by alpha and beta.
# This module calculate cdf and inverse cdf for Beta Distribution.
#
module Beta
extend Distributable
SHORTHAND = 'beta'
create_distribution_methods
##
# :singleton-method: pdf(x,a,b)
# Returns PDF of of Beta distribution with parameters a and b
##
# :singleton-method: cdf(x,a,b)
# Returns the integral of Beta distribution with parameters a and b
##
# :singleton-method: p_value(qn,a,b)
# Return the quantile of the corresponding integral +qn+
# on a beta distribution's cdf with parameters a and b
end
end
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