Contents

#!/usr/bin/env ruby
require("gsl")
GSL::Rng.env_setup()

N = 10000
rng = GSL::Rng.alloc

h = GSL::Histogram.alloc(20, [0, 20])

=begin
for i in 0...N do
  r = rng.poisson(5)
#  r = GSL::Ran::poisson(rng, 5)
  h.increment(r)
end
=end

v = rng.poisson(5, N)
h.fill(v)

h.normalize!
x = GSL::Vector.linspace(0, 20, 100)
y = GSL::Ran::poisson_pdf(x, 5)
GSL::graph(h, [x, y], "-C -g 3 -L 'Poisson distribution, mu = 5'")

Version data entries

22 entries across 22 versions & 4 rubygems

Version	Path
gsl-2.1.0.3	examples/histogram/poisson.rb
gsl-2.1.0.2	examples/histogram/poisson.rb
gsl-2.1.0.1	examples/histogram/poisson.rb
gsl-2.1.0	examples/histogram/poisson.rb
gsl-1.16.0.6	examples/histogram/poisson.rb
rb-gsl-1.16.0.5	examples/histogram/poisson.rb
rb-gsl-1.16.0.4	examples/histogram/poisson.rb
rb-gsl-1.16.0.3	examples/histogram/poisson.rb
rb-gsl-1.16.0.3.rc1	examples/histogram/poisson.rb
gsl-nmatrix-1.15.3.2	examples/histogram/poisson.rb
gsl-nmatrix-1.15.3.1	examples/histogram/poisson.rb
rb-gsl-1.16.0.2	examples/histogram/poisson.rb
rb-gsl-1.16.0.1	examples/histogram/poisson.rb
rb-gsl-1.16.0	examples/histogram/poisson.rb
rb-gsl-1.15.3.2	examples/histogram/poisson.rb
rb-gsl-1.15.3.1	examples/histogram/poisson.rb
blackwinter-gsl-1.15.3.2	examples/histogram/poisson.rb
gsl-nmatrix-1.15.3.0	examples/histogram/poisson.rb
gsl-1.15.3	examples/histogram/poisson.rb
gsl-1.14.7	examples/histogram/poisson.rb