The Raspberry Pi Twitter Sentiment Server (I really must called RPTSS for short) is an ongoing tutorial on using R, Sqlite and some Python to measure Twitter sentiment on given hashtags. The project started out as a blog post last year, “Twitter Sentiment Analysis in 30 Seconds“.
Part 2 – Working with OAuth and Twitter.
Part 4 – Basic sentiment analysis.
Part 5 – Putting it all together
Part 6 – Executing via Cron
Part 7 - Web Server and improvements
If you’re really impatient you can clone the entire codebase from github.