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Web Application Development with R Using Shiny

You're reading from   Web Application Development with R Using Shiny Build stunning graphics and interactive data visualizations to deliver cutting-edge analytics

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Product type Paperback
Published in Sep 2018
Publisher
ISBN-13 9781788993128
Length 238 pages
Edition 3rd Edition
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Authors (2):
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Chris Beeley Chris Beeley
Author Profile Icon Chris Beeley
Chris Beeley
Shitalkumar R. Sukhdeve Shitalkumar R. Sukhdeve
Author Profile Icon Shitalkumar R. Sukhdeve
Shitalkumar R. Sukhdeve
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Table of Contents (11) Chapters Close

Preface 1. Beginning R and Shiny 2. Shiny First Steps FREE CHAPTER 3. Integrating Shiny with HTML 4. Mastering Shiny's UI Functions 5. Easy JavaScript and Custom JavaScript Functions 6. Dashboards 7. Power Shiny 8. Code Patterns in Shiny Applications 9. Persistent Storage and Sharing Shiny Applications 10. Other Books You May Enjoy

Shiny gadgets

So far, we have seen how to present data with Shiny apps for the end user. Now it's time to develop gadgets for R coders. The main difference between Shiny apps and Shiny gadgets is that apps are deployed on servers, such as shinyapps.io or a deployable server, but gadgets are to be called from the code from R Script. At the same time, Shiny gadgets can be registered with RStudio as add-ins.

Shiny gadgets have been developed to make repeatable tasks easily doable, such as importing data in the right formats, cleaning data, manipulating, or visualization. Now let's see how to write Shiny gadgets:

library(shiny) 
library(miniUI) 
 
newGadget <- function(inputVal1, inputVal2) { 
 
  ui <- miniPage( 
    gadgetTitleBar("New Gadget"),  # title of Gadget 
    miniContentPanel( 
      # layout, inputs, outputs 
    ) 
  ) 
 
  server <- function...
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