API's and webscraping: Getting data from the web straight into R

The web contains a lot of data that could be useful to add to our analysis: exchange, tweets, movie ratings, ... Sometimes it is accessible through API's, but in other cases you need to grab it from the actual pages.

The workshop will introduce getting data from APIs (in json and xml format), and scraping it from web pages in case no API is available. And because not everything should just be scraped, we'll also cover some scraping etiquette.