Heatmap Chart

<% heatmap_series = 17.downto(10).map do |n|
  {
    name: "#{n}:00",
    data: 15.times.map do |i|
      ["W#{i+1}", rand(90)]
    end.to_h
  }
end %>
<%= heatmap_chart(heatmap_series) %>
Example Heatmap Chart

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