README.md in field_test-0.3.0 vs README.md in field_test-0.3.1

- old
+ new

@@ -2,10 +2,11 @@ :maple_leaf: A/B testing for Rails - Designed for web and email - Comes with a [dashboard](https://fieldtest.dokkuapp.com/) to view results and update variants +- Uses your database for storage - Seamlessly handles the transition from anonymous visitor to logged in user Uses [Bayesian statistics](https://www.evanmiller.org/bayesian-ab-testing.html) to evaluate results so you don’t need to choose a sample size ahead of time. [![Build Status](https://travis-ci.org/ankane/field_test.svg?branch=master)](https://travis-ci.org/ankane/field_test) @@ -73,9 +74,28 @@ button_color: winner: green ``` All calls to `field_test` will now return the winner, and metrics will stop being recorded. + +You can keep returning the variant for existing participants after a winner is declared: + +```yml +experiments: + button_color: + winner: green + keep_variant: true +``` + +You can also close an experiment to new participants without declaring a winner while still recording metrics for existing participants: + +```yml +experiments: + button_color: + closed: true +``` + +Calls to `field_test` for new participants will return the control, and they won’t be added to the experiment. You can get the list of experiments and variants for a user with: ```ruby field_test_experiments