https://github.com/movableink/u-mann-whitney
U Mann-Whitney test extracted from sciruby/statsample
https://github.com/movableink/u-mann-whitney
Last synced: 6 months ago
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U Mann-Whitney test extracted from sciruby/statsample
- Host: GitHub
- URL: https://github.com/movableink/u-mann-whitney
- Owner: movableink
- License: mit
- Created: 2017-09-08T16:04:48.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2018-01-19T19:58:41.000Z (over 7 years ago)
- Last Synced: 2024-11-18T02:51:50.335Z (7 months ago)
- Language: Ruby
- Size: 9.77 KB
- Stars: 1
- Watchers: 6
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE.txt
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README
# UMannWhitney
This gem is extracted from [statsample](https://github.com/sciruby/statsample) to reduce the number of dependencies.
The U Mann-Whitney test is a non-parametric test for assessing whether two independent samples of observations come from the same distribution.
## Installation
Add this line to your application's Gemfile:
```ruby
gem 'u-mann-whitney'
```
And then execute:
$ bundle
Or install it yourself as:
$ gem install u-mann-whitney
## Usage
```
leader_values = Daru::Vector.new([1,2,3,4,5,6])
challenger_values = Daru::Vector.new([7,8,9,10,11,12])
mann_whitney_test = UMannWhitney.new(leader_values, challenger_values)
mann_whitney_test.probability_z
=> 0.0039477518569035475
mann_whitney_test.probability_exact
=> (1/462)
```
## Development
After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
## Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/movableink/u-mann-whitney.
## License
The gem is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).