Exploratory data analysis and machine learning projects from the Johns Hopkins / Coursera Data Science specialization — built in R, published on RPubs and GitHub. Because the best product instincts are grounded in empirical evidence.

Reproducible Research · R Markdown
Analysis of personal activity monitoring data — computing daily step counts and imputing missing values using mean substitution. Explores weekday vs. weekend activity patterns.

NOAA Storm Data · R · Data Analysis
Analysis of NOAA's 60-year storm event database to identify which natural disasters cause the greatest human casualties and economic damage. Tornadoes dominate injuries; floods dominate property loss.

Machine Learning · Practical ML
Classification model predicting exercise form from accelerometer data. Compared Random Forest, GBM, and LDA — Random Forest achieved 99.4% accuracy on the held-out test set via cross-validation.

Data Visualization · R / RPubs
Exploratory visualization of all Pokémon base stats — mapping attack power against defensive capability across all 18 elemental types. Built as an introduction to plotly and interactive data storytelling.

Geospatial · Leaflet · R
Leaflet-powered interactive map pulling NBC Universal job postings and plotting them geographically across the US. A proof-of-concept for real-time geospatial job market intelligence — built before this was table stakes.