I am new to Ruby on Rails development, and I am working on building charts is a Ruby on Rails application using Chartkick gem.
I am taking values from a form and storing the param values directly in the instance variables. I am then using those instance variables to plot graph.
I have three instance variables. Two of them (@usl and @lsl) contain integer values and @h contains a hash.
Below is the code I am running to plot the graph.
<%= line_chart([{name: "PROCESS_TIME_SAMPLES", data: @h.map{|t| [t.index, t] }}, {name: "USL", data: @usl},{name: "LSL", data: @lsl}]) %>
However, I can see that @usl and @lsl are not getting plotted in the graph. Only @h is getting plotted successfully as below.
