Hello!
I am using an R package that, in addition to returning things, prints some very useful info to the console. For example, it prints what iteration it is on right now.
How could I print that console output directly to my UI?
Assume this is my UI:
ui <- shinyUI(
fluidPage(
titlePanel("Print consol output"),
sidebarLayout(
sidebarPanel(actionButton("go", "Go")),
mainPanel(
verbatimTextOutput("console_text")
)
)
)
)
My user clicks on actionButton "Go" and my package starts doing things - while sending stuff to the console at the same time. I guess, I want the content of the console to be saved as output$console_text - but I don't know if that's the right approach and how to do it. Let's say - instead of the package, I just create my own mini-function (inside server).
server <- function(input, output, session) {
myfunction <- function(x) {
for(i in 1:x) cat(i)
return(x)
}
observeEvent(input$go, {
{
# This is certainly wrong:
output$console_text <- renderPrint(result <- myfunction(20))
}
})
}
shinyApp(ui, server)
Thank you very much!