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stufield/README.md

Welcome To My Homepage!

Bridging data, science & strategy ๐Ÿš€ Machine Learning ๐Ÿ› ๏ธ Tool Development ๐Ÿ“ฆ R Software ๐Ÿงญ Leadership ๐Ÿงฌ Life Sciences Domain Expert โœจ Director of Data Science @ Cercle.ai

stufield Cumulative repo traffic

stufield's Github Contribution Chart

๐Ÿ”ฌ Domain expertise: IVF clinical analysis, proteomics, biomarker discovery, predictive modeling

๐Ÿ“Š Technical tools: R, machine learning, statistics, experimental design, reproducible research

๐Ÿ’ช Strengths: Translating complexity, cross-functional collaboration, storytelling with data


"Making predictions is easy ... making accurate ones is much more difficult." โŽฏ MeโŽฏ


๐Ÿงฌ About Me ๐Ÿงฌ

I love to solve problems.

Often the problem can be understanding a complex biological process, but it can also be as simple as fixing something that's broken (e.g. a door that jams, a bicycle, or even machine learning software). In particular, I like to apply my data science skills to better understand, or even solve, the problems we face.

I am always open to discuss possible roles ๐Ÿ”ญ and whether my skill set can solve problems in your space!

Skills

Machine Learning ๐Ÿš€ Statistics ๐Ÿ“Š Open-Source ๐Ÿ’ป Software Tools ๐Ÿ”ง
Random forest Regression problems R Linux๐Ÿง, MacOS ๐ŸŽ
Naive Bayes Real-world data (RWD) C++ Git, GitHub :octocat:
Lasso regularization GLMs CI/CD AWS
k-Nearest neighbour Causal inference IPTW LaTeX BASH, GNU
PCA Survival analysis Python ๐Ÿ Docker ๐Ÿ‹
Maximum-likelihood Linear mixed-effects Opencode LLM/Agentic workflows

Current Skills Application as Director of Data Science

  • Execute organization's data science strategy, aligning analytics with business and clinical goals
  • Instituted a culture of rigorous, reproducible analysis -- shifting the team from reactive one-off requests to disciplined workflows emphasizing data quality as the primary standard
  • Deliver causal inference analyses on large-scale reproductive health data (IPTW, propensity scoring, covariate balancing) to inform clinical treatment protocol decisions
  • Lead our key pharmaceutical partnerships, translating multi-arm observational results into clinical insights
  • Collaborate with customers and C-suite to create framework for data-based decision making
  • Architect and maintain a company-wide \R analytics ecosystem -- standardizing workflows from data ingestion through Quarto-driven client reporting
  • Build and mentor a data science team of 3-5; own hiring, statistical analysis plans, code review, and technical growth

Tech Notes & Tutorials ๐Ÿ“š


False Discovery

Mixture Models

Logistic Regression

Naive Bayes

The Birthday Paradox

Mack-Wolfe Tests

Mixed Effects

Monty Hall Paradox

Decision Boundaries

Class Imbalance

Pitch Classifier

IPTW

๐Ÿ“Š GitHub Stats

Top Languages Stu's GitHub Stats

โณ GitHub Profile โณ

GitHub Profile

๐Ÿ”ฅ Commit Streak ๐Ÿ”ฅ

GitHub Streak


GitHub Streak


๐Ÿ”ง GitHub Favorites ๐Ÿคฉ

helpr wranglr libml gitr stufield stabilityselectr

Other Interests

  • ๐Ÿ’ฌ Favorite food: ๐ŸŸ ๐ŸŒฎ
  • ๐Ÿ“š I am currently learning woodworking ๐Ÿชต ... I'm mostly good at making a lot of sawdust!
  • ๐Ÿ’ฌ Ask me about: bikes and R ... I'll talk your ๐Ÿ‘‚ off!
  • ๐Ÿšด I'm an avid cyclist: come say hi on

Pinned Loading

  1. helpr helpr Public

    The helpr package contains numerous helpers, wrappers, and utilities used throughout my analysis suite. It intentionally favors base R over higher level *tidyverse* to minimize imports.

    R 2

  2. wranglr wranglr Public

    The wranglr package contains general functions necessary to manipulate and wrangle internal R representations of proteomic data into convenient forms for analysis.

    R

  3. stabilityselectr stabilityselectr Public

    The stabilityselectr package performs stability selection with a variety of kernels provided by the 'glmnet' package, and provides simple tools for plotting and extracting selected features. There โ€ฆ

    R

  4. gitr gitr Public

    A light-weight, dependency-free, API to access system-level git commands from within R

    R 2