[R] Add wrapper to Shiny in R package

[Thierry Onkelinx]

Dear Axel,

I've used environment for such problems.

assign("xs", xs, envir = my.env) in the myApp function
get("xs", envir = my.env) in the server function

Best regards,


ir. Thierry Onkelinx
Statisticus/ Statiscian

Vlaamse Overheid / Government of Flanders
INSTITUUT VOOR NATUUR- EN BOSONDERZOEK / RESEARCH INSTITUTE FOR NATURE
AND FOREST
Team Biometrie & Kwaliteitszorg / Team Biometrics & Quality Assurance
thierry.onkelinx op inbo.be
Kliniekstraat 25, B-1070 Brussel
www.inbo.be

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2017-09-21 15:02 GMT+02:00 Axel Urbiz <axel.urbiz op gmail.com>:
> Dear List,
>
> I'm trying to add a function that calls a Shiny App in my R package. The
> issue is that within my function, I'm creating objects that I'd like to
> pass to the app. For instance, from the example below, I'm getting
> "Error: object
> 'xs' not found". How can I pass "xs" explicitly to shinyApp()?
>
>
> *Under R directory:*
>
> myApp <- function(x, ...) {
>   require(shiny)
>
>   xs <- scale(x)
>
>   shiny::runApp(appDir = system.file("application", package =
> "my_package"), ...)
>
> }
>
> *Under inst/application directory a file named app.R with the following
> content:*
>
> shinyApp(
>   ui = fluidPage(
>     sidebarLayout(
>       sidebarPanel(sliderInput("n", "Bins", 5, 100, 20)),
>       mainPanel(plotOutput("hist"))
>     )
>   ),
>   server = function(input, output) {
>     output$hist <- renderPlot(
>       hist(xs, breaks = input$n,
>            col = "skyblue", border = "white")
>     )
>   }
> )
>
> Thank you,
> Axel.
>
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>
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