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- NEW The Floppy Disk of Floating Point
- Why I’m Learning Perl 6
- Type Punning Functions in C
- Elixir RAM and the Template of Doom
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Why I Develop For The Mac
- Follow-up: Hackers and <canvas>
- Please Offer An Excel Export Option
- Statistical Shortcomings in Standard Math Libraries
- Functional Tests As A Tree Of Continuations
- SlowerLogLog
- The Amex EveryDay Bonus: A Stochastic Valuation Model
- Adventure Games and Eigenvalues
- Splatoon’s Ranking System Is Still Broken
- Evaluating Splatoon’s Ranking System
- Inferring Tweet Quality From Retweets
- Statistical Formulas for Programmers
- How To Read an Unlabeled Sales Chart
- Holt-Winters Forecasting Applied to Poisson Processes in Real-Time (pdf)
- Preface to A Lost Lady
- Preface to Brave New World
- Preface to Frankenstein
- Preface to The Time Machine
- You Can’t Dig Upwards
- The Mathematical Hacker
- Don’t Kill Math
- The Other Money Problem
- Start-ups and Emotional Debt
- Things That Bother Me About Swift
- A Review of Perl 6 (Raku)
- A Taste of Rust
- Four Days of Go
- Swift Impressions
- Why I’m Betting On Julia
- Why I Program In Erlang
- Ranking News Items With Upvotes
- Deriving the Reddit Formula
- Ranking Items With Star Ratings
- Bayesian Average Ratings
- How Not To Sort By Average Rating Popular article, 250,000 page views!
- Rank Hotness With Newton’s Law of Cooling
- Simple Sequential A/B Testing
- Formulas for Bayesian A/B Testing
- The Low Base Rate Problem
- A/B Testing Duration Data
- Lazy Assignment and A/B Testing
- Announcing Evan’s Awesome A/B Tools
- Linear Regression For Fun And Profit
- How Not To Run An A/B Test Popular article!
- Big Tablets Are Coming
- Escaping The Two-Star Rating Pit
- The Software Scientist
- Apple’s RAM Problem
- Marketing Your Startup Hub
- The Feature Matrix
- Predictive Analytics: What Is It Good For?
- Big Data and the Price-Precision Curve
- In Praise of Small Data
(RSS)
 Magic Maps 2 Mapping and analysis |
 Wizard 2 Got data? Get Wizard |
Evan’s Awesome A/B Tools (home)
- Sample Size Calculator – How many subjects do you need for your experiment?
- A/B Buddy – A sample size calculator for iPhone and iPad
- Chi-Squared Test – Are the conversion rates statistically distinguishable?
- Two-Sample T-Test – Is the difference in means significant?
- Survival Curves Test – Does the hazard rate differ between two groups?
Evan’s Ultimate Credit Card Calculators
- Amex Blue Cash Cashback Calculator – Is the $95 annual fee worth it?
- Amex EveryDay Bonus Calculator – Spending as a random Poisson process
Open-source projects I maintain:
- Hecate – The Hex Editor From Hell!
- libxls – Excel (.xls) reader for C/C++
- librdata – R data reader/writer for C/C++
- ReadStat – SAS/SPSS/Stata reader/writer
- ProjCL – Secret map-projection sauce
- TimeFormatStrings – Excel, Unicode, Stata
- DSShortNumberFormatter – An abbreviator
Stuff that still works:
- Erlang:
- Chicago Boss – Web framework
- BossDB – An evented ORM for Erlang
- ErlyDTL – Django template language
- Aleppo – Erlang Pre-Processor
- Jerome – Rich-text processing library
- Nginx:
- mod_zip – Streaming ZIP archiver
- mod_circle_gif – Lots of round corners
- mod_rrd_graph – Pretty pictures
Project graveyard:
- nginx_upstream_hash (2007–2014)
A hashing load balancer for Nginx. RIP - Google Maps Extension (2005–2012)
Embed and edit Google Maps in your wiki. RIP
Hello, and welcome to Evan Miller’s corner of the Internet. I earned my bachelor’s degree in physics from Williams College, worked briefly for A9.com and IMVU, and spent a few years in an economics Ph.D. program at the University of Chicago.
Academia wasn’t for me, so now I make a living developing software and mathematical tools. You’ll find my ranking algorithms in use at some of the largest destinations on the Internet, and my statistics software cited in top medical journals. Need consulting or speaking? Email me.