These regressions aim to measure the extent to which Baumol’s Cost Disease and regulatory constraints drive variation in childcare prices across states.

Solutions to problem set 2 for experimental psychology methods class.

This is our first R assignment. We hope we can deliver the best results and do even better on the next one

Project Summary: This project demonstrates my proficiency in data acquisition and manipulation by reading and parsing identical datasets stored in three different file formats: XML, JSON, and HTML. Using R and specialized packages (xml2, jsonlite, and rvest), I successfully extracted structured book data from each format, transformed it into clean data frames, and validated consistency across formats. The project showcases essential data engineering skills including web-based data retrieval via GitHub URLs, format-specific parsing techniques, reproducible research through R Markdown, and professional documentation. This work highlights my ability to handle diverse data sources—a critical skill in modern data science where information comes from APIs (JSON), enterprise systems (XML), and web scraping (HTML). The complete analysis is published on RPubs with source files hosted on GitHub, demonstrating my commitment to reproducible research and version control best practices.

13.10.2025