Safely render a ggplot in Shiny application

safe_ggplot(expr, data = NULL,
  session = shiny::getDefaultReactiveDomain())

Arguments

expr

Code to produce a ggplot object.

data

Argument passed to eval_tidy to evaluate expression.

session

Session object to send notification to.

Value

Output of ggplot_build.

Examples

if (interactive()) { library(shiny) library(ggplot2) ui <- fluidPage( fluidRow( column( width = 3, selectInput( inputId = "var", label = "Var:", choices = c("Sepal.Width", "Do.Not.Exist") ) ), column( width = 9, plotOutput(outputId = "plot") ) ) ) server <- function(input, output, session) { output$plot <- renderPlot({ p <- ggplot(iris) + geom_point(aes_string("Sepal.Length", input$var)) safe_ggplot(p) }) } shinyApp(ui, server) }