This is the home of the creative work of Paul Butler.
I create pen plots, explorable explanations, and code notebooks (among other things).
Office Supply Pointillism
An attempt at creating a photorealistic reproduction of an image using 1,500 colored dot stickers.
I used Floyd– Steinberg dithering to determine the dot placement and then placed the stickers by hand.
An explorable exploration of the Kelly Criterion for bet sizing.
Did The White House Alter a Video?
A code notebook that takes a mathematical approach to forensic video analysis.
A data portal that uses interactive visualizations to explain ranked choice election results.
The Misunderstood Electoral College
An explorable explanation of some unintuitive implications of the electoral college.
Understanding the Mandelbrot Fractal
A tour of complex arithmatic, leading to the construction of the Mandelbrot fractal.
Optimizing Plots with a TSP Solver
A runnable notebook that explains how to model plotter path optimization as a routing optimization problem.
A series of plots exploring ways to generate sketches from a photograph, including a Metropolis–Hastings random walk.
A series of plots using a technique I call surface projection, and a code notebook that explains it.
Fractal Generation with L-Systems
A series of plots generated by Lindenmayer Systems, and a notebook explaining the technique.
A browser extension for visualizing the tree structure of Twitter conversations.
Exploration of an alternative UI for presenting international flight options.
A map of New York City made from 60,000 flags, drawn proportionately from the birthplaces of the foreign-born inhabitants of each census tract.
Created for an art exhibition in Cleveland, Ohio.
Interactive visualization of point-to-point transit times on Toronto’s TTC transit network.
Winner of the Kontagent Big Data Challenge ($10K prize.)
Interactive visualization of Groupon deals collected from the web in 2011, shortly before their IPO.
Featured in the July-August 2011 Harvard Business Review
Visualization of ten million Facebook friend pairs. Featured on the Facebook Engineering blog as well as The Economist, BBC, and Time.