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library(shiny)
library(plotly)
ui <- fluidPage(
plotlyOutput("plot"),
verbatimTextOutput("data")
)
mtcars$id <- row.names(mtcars)
server <- function(input, output, session) {
output$plot <- renderPlotly({
plot_ly(mtcars, x = ~disp, y = ~mpg) %>%
add_markers(key = ~id) %>%
layout(dragmode = "select") %>%
highlight("plotly_selected")
})
selected <- reactiveVal(rep(FALSE, nrow(mtcars)))
selected_data <- reactive({
ed <- event_data("plotly_selected")
if (is.null(ed)) return(NULL)
new <- mtcars[["id"]] %in% ed[["key"]]
selected(selected() | new)
mtcars[selected(), ]
})
output$data <- renderPrint({
selected_data()
})
}
shinyApp(ui, server)
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