Incidental Findings

PediTools bilirubin webtool via Alfred keyboard shortcut

Creating an Alfred app workflow to trigger the PediTools 2022 AAP hyperbilirubinemia guidelines webtool via zsh script

Gestational age parsing

Helper functions for vectorized parsing of gestational age strings to numeric and back

Future-proofing with PediTools Universal

Preparing PediTools for the future: support for 120+ distinct growth curves and beyond, including bulk calculations, plotting, and custom growth chart generation.

WHO growth standards, expanded

Data visualization

WHO Growth Standard expanded chart parameters – mildly automated data scraping and metadata parsing.

Night flight training

Data visualization

How to spend hours down the rabbit hole of finding precise definitions for night flying and analyzing exactly how accurate the usual rule of thumb is.

Custom checklists

Creating customized, precisely-sized, double-sided, laminated, easy-to-update checklists.

Crafting my own VFR Navlog

Creating a navigation log with heading, time, fuel consumption, and weight & balance calculations, also suitable for printing and folding for use on a kneeboard.

Folding aviation charts and internet archaeology

Retrieving long lost instructions on how to fold aviation charts, both the original Duncan McKillop method as well as a later improvement by Steve Hirlehey

Aviation winds aloft forecast locations

Data visualization

Update the original poor quality 30 kb GIF of aviation wind and temperature aloft forecast locations with R-generated vector graphics

Magic Labyrinth – generating fair (or unfair) game boards

Generate Magic Labyrinth random game boards and analyze fairness for different player start locations.

Plot histogram with overlaid normal curve

Given a vector of values, create a ggplot histogram with overlaid best-fitting normal curve, with prettified caption of numerics

From flight plan to Google Earth video, now via Shiny App

Developed an R Shiny app to facilitate conversions of flight plans to Google Earth video tours.

From flight plan to Google Earth video tour

Using R to convert a .FPL flight plan into a Google Earth video tour

geom_bar plot ordered by value

Create a ggplot geom_bar plot with bars ordered by value, x axis labels rotated, and y axis formatted as percent

METAR analysis

Analyzing historical METAR weather data for flight conditions by month and time of day, including calculation of crosswinds for available runways.

Interpolating missing values

Linear interpolation of missing dependent values based on an independent variable, not permitting extrapolation

First flight

After decades of dreaming of flying, I scheduled and experienced a ‘discovery flight’.

2022 CDC extended BMI-for-age

Data visualization

Extrapolation of the original CDC 2000 BMI-for age growth charts beyond the 97th percentile is a really, really bad idea – graphical demonstration.