WeightedLottery

WeightedLottery provides weighted randomization by given ratios in Ruby.

Add this line to your application's Gemfile:

gem 'weighted_lottery'

And then execute:

$ bundle

Or install it yourself as:

$ gem install weighted_lottery

WeightedLottery.pick(
  {
    "win" => 10,
    "loose" => 90
  }
)

# => "loose"
# There is a 10% chance of winning.

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.

Bug reports and pull requests are welcome on GitHub at https://github.com/s-yashiro/weighted_lottery.

The gem is available as open source under the terms of the MIT License.