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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 FREE CHAPTER 2. Shiny First Steps 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

Downloadable reports with knitr

This same function can very easily allow your users to produce custom reports in HTML, pdf, or MS Word ready to be downloaded to their machines, using the knitr package (http://yihui.name/knitr/). knitr is a user-contributed package that allows reports to be generated dynamically from a mixture of a static report formats interleaved with the output from of R.

So, for example, titles and text can be fixed, but each time the report is run, a different output will be produced within the document depending on the state of the data when the output is generated. knitr can be used with the R Markdown format. Here is the simple R Markdown document within the Google Analytics application:

# Summary report  
## Text summary  
This report summarises data between `r strftime(input$dateRange[1], 
format = "%d %B %Y")` and `r strftime(input$dateRange...
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