Week 7: R Text Mining & Visualization

After laying the groundwork for a few weeks, we can finally start to do some textual analysis and fancy visualization! We will cover the following contents:

1. Recap on news database scraping: how to have R automatically go through multiple .rtf files, scrape information in those files, and store them in a large R data frame.

2. Plot news article timeline (grouped by sources)

3. Check keywords and key phrases in context

4. Plot keyword frequencies by date

5. Make some pretty word clouds

6. Analyze and plot sentiments

Feel free to attempt the tasks yourself with this dataset!