Portfolio

Evans Winner


(Also: Resume | Github | vCard | LinkedIn)

Experiment & Analysis

Do “ultradian” rhythms mediate my productivity throughout the day? — A quick analysis in Rmarkdown. (Local, 2018.1)

Sound-pressure level at a large datacenter — One ought to wear earplugs in a noisy datacenter. Rmarkdown (Local, 2018.2)

Tools

Piltdown - Python Unicode-based data visualization for Twitter posts. (Github, 2021)

Kallychore — Plain-text code notebook processor for mixing text and bash code, a little like Rmarkdown mixes Markdown and R. Bash with embedded awk. (Github, 2018)

Todostack.el — A to-do list as a stack, written in Emacs Lisp. (Github, 2011). Some description on Blogspot.

Simulation

A simulator from scratch in Common Lisp for some of IBM’s AJS job scheduler that I actually used for validating schedules on production machines. (Github, 2013)

A little eBay auction simulator, auctions.py using simpy.

Mathy stuff

Playing with The Möbius Function in bash — A visualization of the Möbius function and related things, using Bash, Gnuplot, and Awk. (Local, 2018.4)

Number Chunking with Chunky Numbers — A slightly tongue-in-cheek analysis of how to chunk multi-digit numbers when writing them down. Inspired by a true story (LinkedIn, 2018.03)

Demonstrations

Set Operations with Bash — A demonstration/tutorial. (Local, 2018.4)

A K-nearest neighbor classifier in “pure” Bash. (Local, 2019.7)

Documentation and How-to

Awesome Line Editors — Information about old-fashioned “line editors” like the Unix ed(1) editor. A work in progress. (Github, 2024).

Tally Systems for Hand Collection of Data — Wherein is suggested a novel (I assume) method of making hand tally marks for collection of count data. (LinkedIn, 2018.03.23)

Using Split-Screen mode in Android Nougat for Quicker Data Entry — A quick how-to. (LinkedIn, 2018.03.03)

Cartouche Links With CSS — Make links with CSS that look a little like ancient Egyptian cartouches. (Blogspot, originally on evanswinner.com, 2012)

seu-refcard — A cheatsheet (not written by me) re-coded in Emacsorg-mode format and converted to PDF for IBM’s SEU editor used on the IBM i. (Github, 2014)

Opinion

Why Your Systems People Need a Sandbox — System administrators learn by doing. Give them a place to do it. Opinion piece. (LinkedIn, 2016.06.14)

One Space or Two — In which is answered that age-old and ever-so crucial question: One or two spaces between sentences? (Blotspot, orig. 2013)

School work and misc. exercises

Exploring the BRFSS Data — Final project from a Coursera basic stats course on exploratory data analysis in which is determined that 1) having kids makes you lose sleep, 2) Mondays don’t really suck, and 3) Colorado really is the healthiest state. Well, more or less. Rmarkdown (Local, 2016)

Math and Coding Exercises — Lots of little exercises in APL, Python, Fortran, C, Haskell, Forth, and Lisp from Project Euler, Rosetta Code, Project Lovelace, various books, etc.