**I want to thank everyone who helped this article spread. It went on a worldwide tour of my hometown HipHopDX (thanks to Danielle Harling), as well as XXL, BET, Pigeons and Planes (thanks to Graham Corrigan), Complex (thanks to Justin Davis), and even a translation into French (thanks to French Montana.) If you like these articles, and want to see more, feel free to like the Composer's Corner facebook page.
This chart measures what rappers repeat the same words the most. This chart is actually an index, as is explained on Wikipedia here.
As the guy who generated this data for me emailed me, "Repetitiveness: This is an algorithm I hand rolled to use on this data. It's similar to vocabulary density, but uses ngrams instead of individual words. I think it gives a really meaningful metric. I got the idea when I saw this meme comparing Beyonce to Freddie Mercury."
I used Excel to create the visualization. The data analyst got the raw material from crawling popular lyrics websites.
P.S. - UPDATE:
Here is the data on how many words and how many songs the data was compiled for each artist, so you can decide how big the sample size should be:
P.S. - It's happened so much I had to make an FAQ for negative feedback, so before you offer non-constructive criticism, please read this.
P.S. - If you like this and want to encourage me to write more articles, think about buying a T-shirt here. Don't worry, I won't make any money off it - it's all for the love of the game. The rap game.