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POR Shiny rCharts Morris - rChart is not displaying (under particular circumstances)
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I came across a problem while using <code>rCharts</code> in my <code>Shiny</code> application. I generate dynamically 1-3 <code>tabPanels</code> (depending on the user selection) and in each of them one plot is rendered. Plot may be of two types: simple (with graphics libary) or rCharts (with morris library). The whole <code>tabsetPanel</code> is rendered within the <code>uiOutput</code> component, each time an user changes his input. The type of the <code>ui output</code> (<code>plotOutput</code> for simple plot or <code>showOutput</code> for rCharts) is defined when a <code>tabPanel</code> is rendered, so the plot does have a proper environment. And the problem: simple plots (with graphics, ggplot2 etc.) do work OK - they are displayed correctly in a <code>tabPanel</code>. However, when I work with application and have 2 or 3 rCharts to be displayed, it happens that one chart is not displaying - almost at all (see the images below). Of course, such a problem does not appear with simple plots. I tried to have the output size fixed, size flexible, but the problem still exists. I have varsions of R and the libraries as follows: <pre><code>> R.Version()$version.string [1] "R version 3.0.1 (2013-05-16)" > packageVersion("Shiny") [1] ‘0.7.0’ > packageVersion("rCharts") [1] ‘0.3.51’ </code></pre> Thank you a lot for any suggestions. rCharts working OK: <img src="https://i.stack.imgur.com/B0bEm.png" alt="enter image description here"> rCharts FAIL to be dispkayed ok: <img src="https://i.stack.imgur.com/BRvFX.png" alt="enter image description here"> EDIT: my code below: UI <pre><code>library(shiny) library(Epi) shinyUI(pageWithSidebar( headerPanel("Header"), sidebarPanel( checkboxInput(inputId = "checkboxInputx", label = "function: x", value = TRUE), checkboxInput(inputId = "checkboxInputxpower2", label = "function: x^2", value = FALSE), checkboxInput(inputId = "checkboxInput2x", label = "function: 2x", value = FALSE), actionButton("gobutton","GO!") ), mainPanel( radioButtons("plottypechoice", "Choose plot type", c("simple", "rCharts")), uiOutput("plotpanelcontent") ) )) </code></pre> SERVER <pre><code>library(shiny) library(rCharts) library(Epi) library(reshape2) # build data frame x <- 1:100 df <- data.frame(x, x^2, 2*x) names(df) <- c("x", "xpower2", "2productx") shinyServer(function(input, output) { # generate tabsetPanel with tabPlots with plot of selected type output$plotpanelcontent <- renderUI({ if(input$gobutton != 0){ # collect tab names tab.names <- vector() if(input$checkboxInputx) tab.names <- c(tab.names, "x") if(input$checkboxInputxpower2) tab.names <- c(tab.names, "xpower2") if(input$checkboxInput2x) tab.names <- c(tab.names, "2productx") print(tab.names) # render tabs tabs <- lapply(tab.names, function(tab.name){ # define tabPanel content depending on plot type selection if(input$plottypechoice == "simple") tab <- tabPanel(tab.name, plotOutput(paste0("simpleplot", tab.name))) else tab <- tabPanel(tab.name, showOutput(paste0("rchartplot", tab.name), "morris")) return(tab) }) return(do.call(tabsetPanel, tabs)) } }) # Render simple plots output$simpleplotx <- renderPlot({ print(plot(df[,1], df[,1])) plot(df[,1], df[,1]) }) output$simpleplotxpower2 <- renderPlot({ print(plot(df[,1], df[,2])) plot(df[,1], df[,2]) }) output$simpleplot2productx <- renderPlot({ print(plot(df[,1], df[,3])) plot(df[,1], df[,3]) }) # Render rCharts output$rchartplotx <- renderChart({ plot <- mPlot(x="x", y="x", type = "Line", data = df) plot$set(dom = "rchartplotx") return(plot) }) output$rchartplotxpower2 <- renderChart({ plot <- mPlot(x="x", y="xpower2", type = "Line", data = df) plot$set(dom = "rchartplotxpower2") return(plot) }) output$rchartplot2productx <- renderChart({ plot <- mPlot(x="x", y="2productx", type = "Line", data = df) plot$set(dom = "rchartplot2productx") return(plot) }) }) </code></pre> UPDATE: I have asked <a href="http://www.oesmith.co.uk/" rel="nofollow noreferrer">Olly Smith</a>, an author of morris.js library, to suggest a solution and I received a following response: Morris can't correctly draw charts when they're not displayed on screen. When using Morris in tabbed applications, you need to redraw the active chart whenever the tab selection changes. There's a redraw() method on the chart objects that each of the Morris.Line/Bar/Donut constructors return that you can use to do this. Unfortunately, it's currently undocumented, but it's a stable part of the API now so it's safe to use. UPDATE 2. : I followed the Ramnath suggestions and update both <code>Shiny</code> and <code>rCharts</code> libraries version: <pre><code>> packageVersion("Shiny") [1] ‘0.8.0’ > packageVersion("rCharts") [1] ‘0.3.53’ </code></pre> and run the code just after restarting the R session. Unfortunately, plots seem to behave in even stranger way now. After doing actions in the following order: <ol> <li>set: "function: x", "rCharts", GO [OK], </li> <li>add: "function: x^2" [see "not_ok_1" image attached below in the post],</li> <li>add: "function: 2x" [see "not_ok_2" image attached below in the post].</li> </ol> I received the plot visualizations as follows: <ol> <li>OK <img src="https://i.stack.imgur.com/cIpjZ.png" alt="enter image description here"></li> <li>"not_ok_1" image <img src="https://i.stack.imgur.com/FgScM.png" alt="enter image description here"></li> <li>"not_ok_2" image <img src="https://i.stack.imgur.com/MtTEh.png" alt="enter image description here"></li> </ol>
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<r><plot><shiny><rcharts><morris.js>
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R Shiny rCharts Morris - rChart is not displaying (under particular circumstances)
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