John Helveston
Community@jhelvy · Washington, D.C.
Associate Professor in EMSE @ GWU, Engineering, Sustainability, Technology Innovation Policy, EVs, China, Data Science, Rstats, Python
Agent Skills by John Helveston
Showing 14 vetted skills indexed across 1 GitHub repositories.
jhelvyquarto-authoring
Create and manage Quarto documents, websites, and books with QMD syntax and YAML configuration.
jhelvyr-oop
Guide R developers in selecting and implementing S7, S3, S4, and vctrs OOP systems.
jhelvyr-bayes
Fit Bayesian multilevel models with brms and visualize causal DAGs in R.
jhelvytidyverse-patterns
Guide R users to modern tidyverse patterns with dplyr 1.1+ and R 4.3+.
jhelvyrlang-patterns
Explain rlang metaprogramming patterns for data-masking and expression injection in R.
jhelvyr-style-guide
Enforce R style conventions and function design best practices.
jhelvyr-performance
Profile and benchmark R code to identify performance bottlenecks.
jhelvyshiny-bslib-theming
Customize Bootstrap 5 themes for Shiny apps with bslib.
jhelvyshiny-bslib
Create Shiny dashboards with bslib Bootstrap 5 layouts and theming.
jhelvyr-package-development
Guide R package development with dependency management, API design, testing, and roxygen2 documentation.
jhelvyModern R Development Guide
Guide modern R development with tidyverse patterns, performance profiling, and rlang metaprogramming.
jhelvytdd-workflow
Implement a test-driven development workflow for R code with testthat.
jhelvyData Analysis Skill
Explore, summarize, and visualize tabular data using R and Python.
jhelvybrand-yml
Create a `_brand.yml` file defining colors, typography, and logos for R Shiny and Quarto.