jhelvy
Assistant Professor in EMSE @ GWU; Engineering; Sustainability; Technology Innovation Policy; EVs; China; Data Science; Rstats; Python; Swing dancing
George Washington UniversityWashington, D.C.
Pinned Repositories
cbcTools
An R package with tools for designing choice based conjoint (cbc) survey experiments and conducting power analyses
distillery
A distill blog and showcase about building distill websites and blogs!
formr4conjoint
A simple demo of using formr.org to create a choice-based conjoint survey
kyria_3d_cases
logitr
Fast estimation of multinomial (MNL) and mixed logit (MXL) models in R with "Preference" space or "Willingness-to-pay" (WTP) space utility parameterizations in R
p4a
Source code for my book "Programming for Analytics in R"
renderthis
An R package for building xaringan slides into multiple outputs, including html, pdf, png, gif, pptx, and mp4.
splitKbCompare
An interactive tool for comparing layouts of different split mechanical keyboards
stanTuneR
This code uses the algebra solver in Stan (https://mc-stan.org/) to find the parameters of a distribution that produce a desired tail behavior.
wireless-corne
Build log and photo gallery for my Wireless Corne keyboard
jhelvy's Repositories
jhelvy/splitKbCompare
An interactive tool for comparing layouts of different split mechanical keyboards
jhelvy/renderthis
An R package for building xaringan slides into multiple outputs, including html, pdf, png, gif, pptx, and mp4.
jhelvy/logitr
Fast estimation of multinomial (MNL) and mixed logit (MXL) models in R with "Preference" space or "Willingness-to-pay" (WTP) space utility parameterizations in R
jhelvy/jKeyboard
Files for creating my custom keyboard, including my Karabiner-Elements settings and WASD Keyboard layout files
jhelvy/jhelvy_distill
Source files for my personal website, built using the {distill} R package and deployed with netlify
jhelvy/jph
A bunch of useful functions for working in R
jhelvy/lexis
A theme for xaringan slides
jhelvy/jhelvy_quarto
Source files for my personal website, built using Quarto and deployed with Netlify
jhelvy/cbcTools
An R package with tools for designing choice based conjoint (cbc) survey experiments and conducting power analyses
jhelvy/charts
A repo of reproducible charts
jhelvy/coding-with-ai
jhelvy/cv
My CV, generated using R, Quarto, and a Googlesheet
jhelvy/demo_quarto_website
jhelvy/p4a
Source code for my book "Programming for Analytics in R"
jhelvy/slides
Slides for talks I've given
jhelvy/smartcharging
jhelvy/stories-with-data
Workshop on telling stories with data
jhelvy/actions_demo
jhelvy/assess
Package for grading assignments - this is something I use for my classes, so it's highly bespoke
jhelvy/car-and-driver
Data from Car and Driver website
jhelvy/emse-student-faq
Some helpful information for graduate students in the EMSE department at GWU
jhelvy/good_model_docs
Source code for the GOOD model documentation website
jhelvy/jhelvy
Welcome to John Paul Helveston's GitHub!
jhelvy/leaf
jhelvy/logitr-cars
Examples for designing a conjoint survey and analyzing results in R
jhelvy/pev-resale-2024
jhelvy/rweekly.org
R Weekly
jhelvy/vmt-2023
jhelvy/workshops
Content for workshops I've given
jhelvy/yardbook
Source code for my book "Yet Another R Dataviz Book"