I tried following along with the following tutorial
Unfortunately, I was not able to recreate a simple comet chart for a small dataset (4000 in 2010, 6500 in 2012). Just two datapoints I wanted to convert into a comet chart for some visual relief on an infographic. I was not able to locate the json script that the instructor copied and pasted into Deben. Any guidance would be much appreciated. Thanks in advance.