Sorry for the delay in posting this. Below are links to the R packages for text mining and topic modeling that I used for my project. In the topic modeling package I used the LDA with Gibbs sampling function.

• Introduction to the tm package
• An R package for fitting topic models

Finally here is the powerpoint with the initial results of my analysis. It has all of the images in case you want to take a second look:

• topicmodelsPPT

Thanks to everyone for participating in the discussion and offering great new ideas!