Projects

A collection of some projects that may or may not be related to my research.

logitr

An R package for estimating multinomial (MNL) and mixed logit (MXL) models in R with "Preference" space or "Willingness-to-pay" (WTP) space utility parameterizations.

conjointTools

An R package of tools for designing choice based conjoint survey experiments.

Wireless Corne

A build log and gallery of how I built my wireless Corne keyboard.

The Distillery

A distill website showcasing other distill websites and blogs.

xaringanBuilder

An R package for building xaringan slides into multiple outputs, including html, pdf, png, gif, pptx, and mp4.

GW Coders

A study group that brings together students and faculty to apply computational and data analytics skills in research.

splitKbCompare

An interactive R Shiny app for comparing layouts of different split mechanical keyboards. Built for the ergonomic keyboard community r/ErgoMechKeyboards.

λέξις (lexis)

A theme for xaringan slides with a light gray background, "Fira Sans Condensed" for headers, "Inter" for body text, and "SFMono-Regular" for mono text.

EMSE 4571: Intro to Programming for Analytics

A course on the fundamentals of programming and computational thinking in R.

EMSE 4572: Exploratory Data Analysis

A course on the foundations in exploring and visualizing data in R.

EMSE 6035: Marketing Analytics for Design Decisions

A course on analyzing consumer choice data in R to inform design decisions in an uncertain, competitive, market.

formr4conjoint

A template for how to create a choice-based conjoint survey using the formr survey platform.

R for Analytics Primer

A self-guided tutorial for developing a foundation in programming in R for data analysis, including data input/output, data wrangling, and data visualization using the Tidyverse.

Iris Rev 2

A build log and gallery of how I built my Iris Rev 2 keyboard.

Corrections

If you see mistakes or want to suggest changes, please create an issue on the source repository.

Reuse

Text and figures are licensed under Creative Commons Attribution CC BY-SA 4.0. Source code is available at https://github.com/jhelvy/jhelvy.com, unless otherwise noted. The figures that have been reused from other sources don't fall under this license and can be recognized by a note in their caption: "Figure from ...".