the code and musings of
data (vis) engineer
Recent and Popular Posts
2016 MLB Division Races
Oct 4th, 2016
· See when teams streaked and how baseball division races progressed throughout the season
Optical Illusions, Part I
Sept 30th, 2016
· Café Wall, Ehrenstein, Müller-Lyer and Ebbinghaus Illusions and reveals in d3.js
Place Names in the United States
Feb 20th, 2016
· Build a query to see historic and geography based patterns of city and town names in the United States
NBA Games Played vs. Games Above .500
Feb 13th, 2016
· See how the Warriors are on pace for a historic season with data from ~100k NBA games
Movies We Watched in 2015
Jan 17th, 2016
· Interactive visualizations of box office data to see when and which movies we watched in 2015
Performance of Stock Pick Lists for 2015
Jan 3rd, 2016
· Would you have beat the market if you followed the picks of Forbes, Barrons, MarketWatch or others?
Golden State Warriors and NBA Team Comparison(through 20 games)
Dec 2nd, 2015
· The Warriors have won their first 20 games. How dominant have they been and how do their stats stack up?
Interactive Equivalent Latitude Map
Nov 9th, 2015
· Drag and zoom world maps to see how latitude of various cities compare. Rome is North of Denver?
S&P 500 Clusters and Dendrogram
Oct 25th, 2015
· A dendrogram of S&P components built using return data. How well does it align with sectors and industries?
DataComb: An interface for combing through tabular datasets
June 21st, 2015
· Notes and a demo of an interactive visualization using NBA player data
Better Ruby on Rails and Heroku Performance
Aug 22nd, 2014
· A few simple and cost effective ways to speed up your Ruby on Rails application
Open-high-low-close(OHLC) Charts with D3.js
July 7th, 2014
· A simple demonstration of stock OHLC charts written in CoffeeScript and D3.js
K-means Clustering and Visualization
Apr 22nd, 2014
· Implementation and visualization of k-means clustering algorithm
How Centrally Located are U.S. State Capitals?
Apr 16th, 2014
· State capitals mapped out against population and geographic centers
NCAA Tournament Seed and Probability of Advancing
Mar 18th, 2014
· How much does seed correlate with March Madness success?
Drought and Historical Rainfall in California
Mar 7th, 2014
· An interactive visualization of the drought in California compared to previous years
Sochi Winter Olympics Medals by Country and Sport
Feb 23rd, 2014
· A visualization that maps medals won in each sport to countries
A Geometric Proof of the Pythagorean Theorem in D3.js
Feb 11th, 2014
= d3? An interactive and animated proof
Another Year, Another Blog Design
Feb 10th, 2014
· This is the third time I've reworked my blog in as many years.
time it's gonna last.
Terminal Crash Course and Reference Sheet
Jan 13th, 2013
· A survival guide for the Unix shell
© Chris Polis, 2012 - 2016