Does a simple analysis of tweets with the hashtag ismb from 2012 and 2014. Was actually concieved as a simple example of how to do an analysis as an #rstats package vignette. The documentation around that idea are available: the why and how.
To install this package, simply use devtools:
library(devtools)
install_github("ismbTweetAnalysis", "rmflight", quick = TRUE)
library(ismbTweetAnalysis)