Contents

require 'epitools/core_ext/array'

describe "Array#histogram" do

  it "does 1..10" do
    nums = (1..10).to_a
    nums.histogram(2).should == [ 5, 5 ]
    nums.histogram(5).should == [ 2, 2, 2, 2, 2 ]
  end

  it "does -10..10" do
    nums = (-9..10).to_a
    nums.histogram(2).should == [ 10, 10 ]
  end

  it "does floats" do
    nums = [0.12, 1.0, 2.2, 3.5, 4.7, 5.9, 6.6, 7.777, 8.898]
    nums.histogram(3).should == [3,3,3]
  end

  it "does ranges" do
    nums = (0..9).to_a
    nums.histogram(2, ranges: true).should == {
      0.0...4.5 => 5,
      4.5...9.0 => 5
    }
  end

end

Version data entries

27 entries across 27 versions & 1 rubygems

Version	Path
epitools-0.5.136	spec/histogram_spec.rb
epitools-0.5.134	spec/histogram_spec.rb
epitools-0.5.133	spec/histogram_spec.rb
epitools-0.5.131	spec/histogram_spec.rb
epitools-0.5.130	spec/histogram_spec.rb
epitools-0.5.129	spec/histogram_spec.rb
epitools-0.5.128	spec/histogram_spec.rb
epitools-0.5.126	spec/histogram_spec.rb
epitools-0.5.125	spec/histogram_spec.rb
epitools-0.5.124	spec/histogram_spec.rb
epitools-0.5.123	spec/histogram_spec.rb
epitools-0.5.122	spec/histogram_spec.rb
epitools-0.5.121	spec/histogram_spec.rb
epitools-0.5.119	spec/histogram_spec.rb
epitools-0.5.118	spec/histogram_spec.rb
epitools-0.5.116	spec/histogram_spec.rb
epitools-0.5.115	spec/histogram_spec.rb
epitools-0.5.114	spec/histogram_spec.rb
epitools-0.5.113	spec/histogram_spec.rb
epitools-0.5.112	spec/histogram_spec.rb