An Interactive Analysis of Tolkien's Works
lotrproject.com
lotrproject.com
This being said, great work and hopefully this is just the beginning of a continued effort to better understand Tolkien's work.
For example, you could speculate that the sentiment analysis shows points of tension and peace in the story, and investigate that hypothesis... but is writing a blog about that, what situations it works in, and what situations it doesn't work in and coming up with a 'well, maybe...' kind of result what interesting? Not to me.
...but providing me with the tools to investigate that myself?
Awesome!