With your R shiny app, you can display charts, tables, maps and essentially any data display output you build in R. These interactions are all programmed by you, the creator of the app. The linkage between the user interface and server function is called reactivity, which is basically the display updating based on user interaction with components of the shiny app. So, your R shiny app audience answers their questions on the spot about the data in your app by interacting with the user interface.

This is how shiny selectively reruns parts of your R code based on user interactions with the web page. The crucial step: your server function can dynamically react to changes in the control inputs from the UI function. The server function contains modular snippets of your R code to access data, transform data and specify data displays such as maps, charts, graphs and tables to be passed to the UI function. The UI function describes what data displays to show, what controls will be available and other relevant information like page titles and chart titles. Supported in all modern web browsers, it can be either for personal use or published to a server for sharing with anyone from a small team to the entire world.īehind the scenes, an R shiny app has a UI (user interface) function and a server function. Interact with the sample R shiny app above, hosted on YakData’s cloud serversĪ shiny app is an interactive display of data on a web page driven by the statistical power of R. You interact with your R shiny app in your favorite web browser. Add the shiny package and you can build a shiny web app in R in minutes. Start with your handcrafted R program for data access, analyses and graphs.

Love your R programs? Want to share them online, complete with dynamic data interaction capabilities? Then the shiny package on CRAN is for you.

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