shinydashboard

how to render a box in shiny according to the data. data is uploaded by user and it can have more data than this, so i have to create a box dynamically. i am running the below code and i am getting four box created in console not in shiny webpage. please have a look, thankyou. CODE list_data <- list(c("AB","CD","EF","GH")) #data ui <- dashboardPage( dashboardHeader(title = "Text Mining"), dashboardSidebar( sidebarMenu( menuItem("NLP Tree", tabName = "NLP") ) ), dashboardBody( tabItems( tabItem(tabName = "NLP", fluidRow( tabBox(width = 12,height="500", tabPanel("Sentences", uiOutput("nlp

Please can you help me to add company logo on the left top of shiny dashboard besides project name. I have tried to use the code in the other answers here on stackoverflow but still can't solve my problem. I am a total ignorant in HTML and css. Here is my code: library(shiny) library(shinydashboard) shinyApp( ui = dashboardPage(skin = "green", dashboardHeader(title = "Project name", # this could show the logo but not where I wanted ! tags$li(a(href = 'http://www.company.com', img(src = 'logo.jpg', title = "Company Home", height = 30px"), style = "padding-top:10px; padding-bottom:10px;"), class

Our shiny page has multiple selectizeInput controls, and some of them have long lists in their drop-down boxes. Because of this, the initial loading time is very long as it needs to pre-fill drop-down boxes for all selectizeInput controls. Edit: Please see below example showing how loading long lists impacts page loading time. Please copy below codes and run directly to see loading process. library(shiny) library(shinydashboard) ui <- dashboardPage( dashboardHeader(title = "Basic dashboard"), dashboardSidebar( selectizeInput("a","filter 1",choices = sample(1:100000, 10000),multiple = T),

I want to download a csv file using the download button in Shiny. The file would be created using the parameters from a secondary r script. ###SERVER output$downloadData <- downloadHandler({ filename = function() { paste('data-', Sys.Date(), '.csv', sep='') } content = function(file) { csv_write<-array(0,dim=c(length(GHI_D),15)) csv_write<-cbind(GHI_Data$timeStamp,GHI_D,POA_OBS_T,POA_model_T,POA_model_FT,POA_OBS,DNI_model,DHI,tracking_angle,incidence_angel_T,Backtracking_angle,SunAz,SunEl,Kt,DNI,DDNI,incidence_angel,DHI_model,DHI_model_T,Eb,Eb_T) write.csv(csv_write,row.names=FALSE, na="")

I have made a shinydashboard app which has now quite an amount of lines of code, and I am wondering if there are ways to split the code into different . R files. I have seen a similar question here , but the answer does not help (especially it says nothing about the code in the server part of the app). For the ui part, I have created functions called header , sidebar , and body , and then I merely write ui <- dashboardPage(header(), sidebar(), body()) It works well, and it still works if the functions header , sidebar , and body need to have arguments. For the server part, I don't think a