Shiny

问题 Is it possible to display different image as title of the shiny dashboard based on the tabPanel() that you use. I want different image for the tab 'Front' and different for the tab 'Data' . # app.R ## library(shiny) library(shinydashboard) library(shinydashboardPlus) library(DT) library(shinyWidgets) library(shinyjs) dbHeader <- dashboardHeaderPlus( enable_rightsidebar = TRUE, rightSidebarIcon = "gears", fixed = T, title = tags$a(href='http://mycompanyishere.com', tags$img(src='logo.png')) )

问题 I built a Docker Image for an R Shiny App and ran the corresponding container with Docker Toolbox on Windows 10 Home. When trying to open the App with my web browser, only the index is shown. I don't know why the app isn't executed. The log shows me this: *** warning - no files are being watched *** [2019-08-12T15:34:42.688] [INFO] shiny-server - Shiny Server v1.5.12.1 (Node.js v10.15.3) [2019-08-12T15:34:42.704] [INFO] shiny-server - Using config file "/etc/shiny-server/shiny-server.conf"

问题 I built a Docker Image for an R Shiny App and ran the corresponding container with Docker Toolbox on Windows 10 Home. When trying to open the App with my web browser, only the index is shown. I don't know why the app isn't executed. The log shows me this: *** warning - no files are being watched *** [2019-08-12T15:34:42.688] [INFO] shiny-server - Shiny Server v1.5.12.1 (Node.js v10.15.3) [2019-08-12T15:34:42.704] [INFO] shiny-server - Using config file "/etc/shiny-server/shiny-server.conf"

问题 I built a Docker Image for an R Shiny App and ran the corresponding container with Docker Toolbox on Windows 10 Home. When trying to open the App with my web browser, only the index is shown. I don't know why the app isn't executed. The log shows me this: *** warning - no files are being watched *** [2019-08-12T15:34:42.688] [INFO] shiny-server - Shiny Server v1.5.12.1 (Node.js v10.15.3) [2019-08-12T15:34:42.704] [INFO] shiny-server - Using config file "/etc/shiny-server/shiny-server.conf"

问题 I use R Shiny Dashboardpage to build my interactive dashboard. I want to lock the dashboardHeader and sidebarMenu so that when scrolling, the header and sidebar remain on the same position. For the sidebarMenu, this can be done in the CSS: .skin-blue .main-sidebar { position: fixed; overflow: visible; } However, when you try the same trick for the dashboardHeader, it fails. It places the dropdownMenus (the notification icons) on the left, instead of on the top right corner. How can I fix the

问题 How can I launch the Shiny App, "my_shiny" through the terminal. Also, how do I terminate or close the app through the terminal only. 回答1: Try this: Rscript -e 'library(methods); shiny::runApp("my_shiny/", launch.browser = TRUE)' 来源： https://stackoverflow.com/questions/35986731/launch-and-terminate-shiny-app-through-terminal

问题 How can I launch the Shiny App, "my_shiny" through the terminal. Also, how do I terminate or close the app through the terminal only. 回答1: Try this: Rscript -e 'library(methods); shiny::runApp("my_shiny/", launch.browser = TRUE)' 来源： https://stackoverflow.com/questions/35986731/launch-and-terminate-shiny-app-through-terminal

问题 With the button extension to DT package, is there a way to specify that the buttons download either (1) all the data feeding the datatable, or (2) only the data on the visible page. Below is the example from the documentation. datatable( iris, extensions = 'Buttons', options = list( dom = 'Bfrtip', buttons = c('copy', 'csv', 'excel', 'pdf', 'print') ) ) 回答1: See this answer: Buttons: download button with scroller downloads only few rows Whether the buttons export all data or only visible data

问题 With the button extension to DT package, is there a way to specify that the buttons download either (1) all the data feeding the datatable, or (2) only the data on the visible page. Below is the example from the documentation. datatable( iris, extensions = 'Buttons', options = list( dom = 'Bfrtip', buttons = c('copy', 'csv', 'excel', 'pdf', 'print') ) ) 回答1: See this answer: Buttons: download button with scroller downloads only few rows Whether the buttons export all data or only visible data

问题 I have this basic shiny app, and it is blazing fast in the 'Viewer', but when I use the 'Open in Browser' option, the select input choices take a while to load. selectList <- sapply(1:15000, function(x) paste(sample(letters, 10), collapse = '')) ui <- fluidPage( selectInput('mylist', 'Select Something', choices = c(Choose = '', selectList), selected = 1) ) server <- function(input, output) { } shinyApp(ui = ui, server = server) According to this thread - https://groups.google.com/forum/#