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
Files related to the Kyria keyboard.
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/surveydown
An attempt to build a markdown-based survey platform using Quarto & Shiny
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/lexis
A theme for xaringan slides
jhelvy/jph
A bunch of useful functions for working in R
jhelvy/solar-learning-2021
This repository contains the data and code to reproduce results from our study titled "Quantifying the cost savings of global solar photovoltaic supply chains". The link below is to an app to assess the sensitivity of our study outcomes to different modeling assumptions.
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/2023-qux-conf-conjoint
Content for my workshop at the 2023 Quant UX Conference on Open Source Conjoint in R
jhelvy/jhelvy.github.io
jhelvy/p4a
Source code for my book "Programming for Analytics in R"
jhelvy/smartcharging
jhelvy/stories-with-data
Workshop on telling stories with data
jhelvy/assess
Package for grading assignments - this is something I use for my classes, so it's highly bespoke
jhelvy/cv
My CV, generated using R, Quarto, and a Googlesheet
jhelvy/edata
jhelvy/github-readme-stats
:zap: Dynamically generated stats for your github readmes
jhelvy/jhelvy
Welcome to John Paul Helveston's GitHub!
jhelvy/logitr-cars
Examples for designing a conjoint survey and analyzing results in R
jhelvy/pev-resale-2024
jhelvy/qmk_firmware
Open-source keyboard firmware for Atmel AVR and Arm USB families
jhelvy/r4aPrimer
jhelvy/slides
Slides for talks I've given
jhelvy/vmt-2023
jhelvy/workshops
Content for workshops I've given