Learning Data Analysis in R

An Applied Project Portfolio

Author

Xinru Wang

Published

February 20, 2026

This portfolio brings together a series of applied data analysis projects developed using R and Quarto. Using real-world datasets, the projects highlight key R skills such as data cleaning, transformation, visualization, statistical modeling, and building interactive Shiny applications. Each chapter reflects a step in my learning process, showing how I worked through moving from raw data to meaningful, interpretable results using reproducible workflows in R.