Tweet Analyzer

During class today, we looked into interactive graphs using Shiny. Towards the end, one of the students brought up an example called Tweet Analyzer that used twitter data and calculated metrics such as "Reputation" or "Sentiment". While it was really "cool" to see a real-time data was used as ingredient for an interactive plot, I thought about what the goal of these very visual and "flashy" applications should be. Since I'm learning dynamic graphs, I should be careful not to be too focused on the visual part but also keep in mind what kind of message I want to make clear with the graphs.