Method: Statsample::Test::UMannWhitney#probability_exact

Defined in:
lib/statsample/test/umannwhitney.rb

#probability_exact ⇒ Object

Exact probability of finding values of U lower or equal to sample on U distribution. Use with caution with m*n>100000. Uses u_sampling_distribution_as62



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# File 'lib/statsample/test/umannwhitney.rb', line 162

def probability_exact
  dist = UMannWhitney.u_sampling_distribution_as62(@n1,@n2)
  sum = 0
  (0..@u.to_i).each {|i|
    sum+=dist[i]
  }
  sum
end