This time we have an interactive article for you. There's an embedded application in this article, right here below this paragraph. It's built from R in conjunction with the Shiny framework. With the app, you can upload your text (.csv) files, then do clustering analysis and view predictions using your own uploaded data.
The app isn't perfectly functional and is more of a proof of concept than anything else. The main idea here is to show you how Shiny and R can work together.