I've been playing with Nightingale's
Wedges Diagram ^1 and making some progress thanks to online resources about the history^1 and the math^2. Still without loads of confidence with the math the exercise is helping me to learn
Racket's
plot language: plot-polar... To test the procedures for making
polar area diagrams I'm using vote count data for USA presidential elections. The visualization (if the math is right, the figures accurate, and the "square root transformation" appropriate: code^3) helps me to see how small the difference is between vote counts for the elections "winner" (the red or crimson part) in comparison with the election's "loser" (the green wedge).. I thought there was a mistake with the data for 2016 when I could not see a red, or crimson band for the winner's vote-count, but then I remembered that the
electoral college set up allows for the election's "winner" to become president while getting a lower vote-count in the "popular vote"(terminology?)... Now I have to find the time to add some sort of legend to associate the colors for the
Voting Age Population(brown here, for now),
Voter Eligible Population(sky blue), the
Voter Turnout(light slate gray), the "winner"'s votes(red), and the losing candidate's votes(pale green)... Later maybe I'll do the last 12 elections, so the "
Rose" (
coxcomb) has the same structures and Nightingale's
Wedges diagram.