Lec20

Announcements

• Sign up to be CTLR tutors for MATH 116 and all things R! Contact Jeanne Albert at CTLR.
• HW-03 Discussion:
  • HTML file
  • HW-3_discussion.Rmd

In-Class

• Slides: Introducing Application Programming Interfaces (API’s) and mining tweets with twitteR package
• In-class exercise:
  • Packages to install: twitteR
  • Code: Lec20.R

Authenticating the twitter API

• Install twitteR package from RStudio (homepage is here)
• Create a Twitter account if you don’t already have one.
• Create a Twitter application at the Twitter Application Management page by clicking “Create New App”. Give it whatever name, description, and use https://rudeboybert.github.io/MATH216/ as the webpage.
• Click the “Keys and Access Tokens” tab
  • Note your “API key”, “API secret”
  • Click on “Create my access token” button below and note your “Access Token”, and “Access Token Secret”.
• Replace the four values below with the values in your “Keys and Access Tokens” page and run (no spaces or line breaks). Indicate yes to the prompt: “Use a local file to cache OAuth access credentials between R sessions?”

library(twitteR)
setup_twitter_oauth(
  "API key", 
  "API secret", 
  "Access token", 
  "Access token secret"
)

# Testing
some_tweets <- searchTwitter("election", n=100, lang="en")

After-Class Updates