Module: Rubystats::ExtraMath

Included in:: BinomialDistribution, ExponentialDistribution, ProbabilityDistribution

Defined in:: lib/rubystats/modules.rb

Instance Method Summary collapse

#binomial(n, k) ⇒ Object

Instance Method Details

#binomial(n, k) ⇒ `Object`



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# File 'lib/rubystats/modules.rb', line 4

def binomial (n, k)
  return Math.exp(log_gamma(n + 1.0) - log_gamma(k + 1.0) - log_gamma(n - k + 1.0))
end