Contents

module Distribution
    # Calculate cdf and inverse cdf for Fisher Distribution.
    # Uses Statistics2 module
    module F
        class << self
            # Return the P-value of the corresponding integral with 
            # k degrees of freedom
            #
            #   Distribution::F.p_value(0.95,1,2)
            def p_value(pr,k1,k2)
                Statistics2.pfdist(k1,k2, pr)
            end
            # F cumulative distribution function (cdf).
            # 
            # Returns the integral of F-distribution 
            # with k1 and k2 degrees of freedom
            # over [0, x].
            #   Distribution::F.cdf(20,3,2)
            # 
            def cdf(x, k1, k2)
                Statistics2.fdist(k1, k2,x)
            end
        end
    end
end

Version data entries

10 entries across 10 versions & 1 rubygems

Version	Path
statsample-0.6.5	lib/distribution/f.rb
statsample-0.6.4	lib/distribution/f.rb
statsample-0.6.3	lib/distribution/f.rb
statsample-0.6.2	lib/distribution/f.rb
statsample-0.6.1	lib/distribution/f.rb
statsample-0.6.0	lib/distribution/f.rb
statsample-0.5.1	lib/distribution/f.rb
statsample-0.5.0	lib/distribution/f.rb
statsample-0.4.1	lib/distribution/f.rb
statsample-0.4.0	lib/distribution/f.rb