Hone your R skills by doing problems.
Please attempt all questions.
The assignment is due Friday 17 November and you are encouraged to work in group and to hand in a single copy for the group.
Devise a method to determine which one cares the most about the economy. Hint: create or download a dictionary of economic terms.
I suggest you download the positive.txt and negative.txt lists from the course homepage.
Create a barplot showing how frequently they appear accross presidents.