ShinyApp Pitch for “Basic Introduction to ggplot2”

author: M Zunnurain Hussain using R version 3.6.1 (2019-07-05) and knitr version 1.25 date: September 23, 2019 transition: rotate incremental: true

Why is the ShinyApp “Basic Introduction to ggplot2” needed?

• Non-intuitive syntax of ggplot R commands
• Basic capabilities of ggplot not widely known
• Options such as colour and facet_wrap mysterious to many

Who needs this ShinyApp?

• Anyone who wants to start using ggplot but was hesitant to make the leap
• Anyone teaching others how to use ggplot who needs a handy interactive example
• Anyone interested to see power and flexibility of ggplot
• Anyone wishing to observe power of the eval command

ggplot_command = sprintf("g = ggplot(mpg, aes(x=%s, y=%s, colour=%s)) + facet_wrap(~%s) + geom_%s()",
                             input$x, input$y, input$colour, input$facet_wrap, input$geom)
    eval(parse(text=ggplot_command))

Example Command and Plot Generated by the ShinyApp “Basic Introduction to ggplot2”

## Loading required package: ggplot2

g = ggplot(mpg, aes(x=cyl, y=hwy, colour=class)) + facet_wrap(~drv) + geom_point()

Try the ShinyApp “Basic Introduction to ggplot2” Today!

• Deployed at https://zunnurainhussain112.shinyapps.io/ShinyProject/

• Code available at: https://github.com/mzunnurainhussain/datasciencecoursera/tree/master/Developing%20Data%20Products/week%204

• Check the documentation at : https://github.com/mzunnurainhussain/datasciencecoursera/tree/master/Developing%20Data%20Products/week%204/www/documentation.html