Jenks

Implementation of Jenks' Natural Breaks Algorithm in Ruby. I converted it from Tom MacWright's original Javascript into Ruby, and then optimized it for Ruby's strengths.

Installation

Add this line to your application's Gemfile:

gem 'jenks'

And then execute:

$ bundle

Or install it yourself as:

$ gem install jenks

Usage

Jenks adds a single method, #jenks to the Array class.

data = (1..20).to_a + (41..60).to_a + (81..100).to_a # Three distinct sets in one array
data.jenks(3) # [1,20,60,100]

Contributing

1. Fork it ( https://github.com/judy/jenks/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Install development gems (bundle install)
4. Benchmark with ruby benchmarks/array_benchmark.rb
5. Fix bugs or add a feature.
6. Verify everything passes (rspec)
7. Benchmark again, leave the code as fast or faster than when you forked.
8. Commit your changes (git commit -am 'Add some feature')
9. Push to the branch (git push origin my-new-feature)
10. Create a new pull request.