Start Here

A curated entry point for Zajichek Stats articles by topic.

ADD TEXT ABOUT who this site is for, what a new reader should expect, and how to use this page.

Healthcare Analytics

ADD TEXT ABOUT why these healthcare analytics posts are a good starting point.

A prediction system for managing the hospital readmission risk pool

Conceptualizing the readmission risk pool

Investigating a Hospital-Specific Report (HSR)

Introducing the {readmit} R package

Getting Started with the HHS Medicaid Provider Spending Dataset

Statistical Thinking

ADD TEXT ABOUT the statistical thinking thread across these posts.

What decision are we trying to make, anyway?

A simple example why statistical significance is insufficient for action

Statistical significance is…insignificant

Can you have a model without data?

A look at collider bias

R / Shiny Applications

ADD TEXT ABOUT how these posts connect R, Shiny, and applied analytics products.

Building a custom LLM-powered Shiny app for hospital readmissions with {querychat}

Making an AI statistical consultant

Trying AI-assisted development in the Positron IDE

Low cost ways to build and deploy analytical web apps

Building a filterable map with {leaflet} and {crosstalk} for hospital readmissions

Reproducible Analytics

ADD TEXT ABOUT reproducible workflows, deployment, and practical analytics infrastructure.

You should have a data science blog

Low cost ways to build and deploy analytical web apps

Getting Started with the HHS Medicaid Provider Spending Dataset

A couple useful JavaScript aggregation and formatting functions for {reactable}

Nesting with {tidyr}

AI for Analytics

ADD TEXT ABOUT how these posts approach AI as part of practical analytics work.

Building a custom LLM-powered Shiny app for hospital readmissions with {querychat}

Making an AI statistical consultant

Trying AI-assisted development in the Positron IDE