A hands on guide to web scraping and text mining for both beginners and experienced users of R • Introduces fundamental concepts of the main architecture of the web and databases and covers HTTP, HTML, XML, JSON, SQL. • Provides basic techniques to query web documents and data sets (XPath and regular expressions). • An extensive set of exercises are presented to guide the reader through each technique. • Explores both supervised and unsupervised techniques as well as advanced techniques such as data scraping and text management. • Case studies are featured throughout along with examples for each technique presented. • R code and solutions to exercises featured in the book are provided on a supporting website.
