Method: Distribution::Beta::Ruby_.cdf

Defined in:
lib/distribution/beta/ruby.rb

.cdf(x, a, b) ⇒ Object

Gamma cumulative distribution function Translated from GSL-1.9: cdf/beta.c gsl_cdf_beta_P



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# File 'lib/distribution/beta/ruby.rb', line 31

def cdf(x, a, b)
  return 0.0 if x <= 0.0
  return 1.0 if x >= 1.0
  Math::IncompleteBeta.axpy(1.0, 0.0, a, b, x)
end