For the most detailed experience, please follow along with this screencast and reference the end product as needed

Setup

1. clone down and setup as you would normally:

   bundle install rake db:migrate rake db:seed

2. Add this gem to your gemfile:

   gem "chartkick"

3. Create a new file in the app/assets/javascripts folder called highcharts.js and copy in the full highcharts codebase

4. In application.js addLabel

   //= require highcharts //= require chartkick

Notes from the screencast

View code to create the original pie chart of exercise log data:

<%= pie_chart ExerciseLog.group(:category).count %>

View code to create the final column chart of exercise log data:

<%= column_chart ExerciseLog.group(:category).average(:duration), ytitle: "Avg Minutes" %>

View code to create the time series chart of exercise duration data grouped by dateFormats

<%= line_chart ExerciseLog.group("date(exercise_logs.created_at)").sum(:duration) %>

View code to create manually entered pie chart data:

<%= pie_chart({:running => 32, :swimming => 54, :biking => 72}, ytitle: "Avg Minutes") %>