On 21/09/2017 11:30 AM, Axel Urbiz wrote:
Thank you Thierry. I'm trying to following your suggestion in the example
below, but getting:
Error in get("xs", envir = my.env) : object 'my.env' not found.
library(shiny)
library(shinydashboard)
myApp <- function(x, ...) {
xs <- scale(x)
my.env <- new.env()
assign("xs", xs, envir = my.env)
shiny::runApp(app)
}
I don't know Shiny's setup very well, but I don't see how the server
function could see my.env here. my.env is local to myApp, and the
server function is defined outside of that.
So you should move my.env to the global environment where the server can
see it, or define the app within myApp, where its functions can see
locals for that function.
Duncan Murdoch
app = shinyApp(
ui = fluidPage(
sidebarLayout(
sidebarPanel(sliderInput("n", "Bins", 5, 100, 20)),
mainPanel(plotOutput("hist"))
)
),
server = function(input, output) {
get("xs", envir = my.env)
output$hist <- renderPlot(
hist(xs, breaks = input$n,
col = "skyblue", border = "white")
)
}
)
myApp(rnorm(100))
Axel.
On Thu, Sep 21, 2017 at 11:13 AM, Thierry Onkelinx <thierry.onkel...@inbo.be
wrote:
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.onkel...@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.ur...@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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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
