File: gsl.rb

package info (click to toggle)
ruby-distribution 0.8.0%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 624 kB
  • sloc: ruby: 4,535; makefile: 10
file content (23 lines) | stat: -rw-r--r-- 463 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
module Distribution
  module Exponential
    module GSL_
      class << self
        def pdf(x, l)
          return 0 if x < 0
          GSL::Ran.exponential_pdf(x, 1 / l.to_f)
        end

        def cdf(x, l)
          return 0 if x < 0
          GSL::Cdf.exponential_P(x, 1 / l.to_f)
        end

        def quantile(pr, l)
          GSL::Cdf.exponential_Pinv(pr, 1 / l.to_f)
        end

        alias_method :p_value, :quantile
      end
    end
  end
end