FleschKincaid

Simple, super-lightweight gem for calculating the Flesch Kincaid score for a given block of text.

We needed to calculate F.K. scores in Ruby.

There's a similar gem named Odyssey, which provides some additional formulae too. However, that codebase is a bit larger and slower.

flesch_kincaid is more than 2x faster (see the benchmark)

If you just need standard Flesch Kincaid scores, this gem should do the trick.

Warming up --------------------------------------
             Odyssey    31.000  i/100ms
      Flesch Kincaid    75.000  i/100ms
Calculating -------------------------------------
             Odyssey    323.004  (± 4.0%) i/s -      1.643k in   5.095737s
      Flesch Kincaid    764.062  (± 3.3%) i/s -      3.825k in   5.012054s

Add this line to your application's Gemfile:

gem 'flesch_kincaid'

And then execute:

$ bundle

Or install it yourself as:

$ gem install flesch_kincaid

@result = FleschKincaid.read("I can't explain myself, I'm afraid, sir' said Alice, 'because I'm not myself, you see.")
@result.score # => 75.77
@result.grade # => "7th grade"
@result.notes # => "Fairly easy to read."

After checking out the repo, run bin/setup to install dependencies. 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/katanacode/flesch_kincaid.

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