TweetMoodometer provides the function analyse-tweets which takes a valid twurl request and draws a graph depicting sentiments in the tweets.
It is built on the data-science package and the Trump's tweet analysis module initially created by Nicholas Van Horn.
read-tweets-twurl reads the tweets from the twurl request provided, the tweets are under the key 'results'
tweetlist extracts the actual tweet text from each tweet hash and removes retweets.
joined-tweetlist is a tail recursion used to extract each string from what tweetlist returns (a list of lists of strings) and appends it into one large string.
sentiment-analysis uses the large string returned from joined-tweetlist to plot the sentiments in a histogram.