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Web Application Development with R Using Shiny by Chris Beeley

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Chapter 4. Taking Control of Reactivity, Inputs, and Outputs

So far in this book we've mastered the basics of Shiny by building our own Google Analytics (GA) application, as well as looked at how to style and extend Shiny applications using HTML, CSS, and JavaScript. In this chapter we are going to extend our toolkit by learning about advanced Shiny functions. These allow you to take control of the fine details of your application, including the interface, reactivity, data, and graphics.

In order to do this, we're going to go back to the Google Analytics application and totally upgrade it, making it much smoother, more intuitive, and well-featured. The finished code and data for this advanced GA application can be found at https://github.com/ChrisBeeley/GoogleAnalyticsAdvanced ...

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