Disclaimer and acknowledgements

• These slides have been prepared based on multiple sources: websites, blogs, courses. While it is hard to cite them all I wish to acknowledge those sources that have been particularly useful.

  • Tutorial-R-web-data, by Gaston Sanchez
  • Text Mining, Scraping and Sentiment Analysis with R Udemy.
  • Working with Web Data in R Datacamp Course

• This chapter makes a heavy use of strings so two additional sources are:

  • Handling Strings with R by Gaston Sanchez and
  • R for Data Science (Strings chapter) by Hadley Wickham and Garret Grolemund.