我想设置一个有光泽和情节的交互式图表。 Shiny具有内置功能,可以获取有关用户交互的信息。例如:输入$ plot_click ,输入$ plot_dblclick ,输入$ plot_hover 和输入$ plot_brush 。 看到: http://shiny.rstudio.com/articles/plot-interaction.html
有没有选择通过Plotly API获取此功能?或者API可以只处理一个方向吗?
Plotly非常酷。我喜欢在我的闪亮应用程序中使用它。
谢谢和最好的问候
尼科
答案 0 :(得分:3)
是的,通过postMessage API有点击和悬停绑定到Plotly图: https://github.com/plotly/postMessage-API
如何在Shiny中使用postMessage API的草图如下: http://moderndata.plot.ly/dashboards-in-r-with-shiny-plotly/
答案 1 :(得分:1)
现在event_data
包中有一个plotly
函数可以处理悬停,点击,刷牙等。
包中有一个描述用法的Shiny演示:
library(plotly)
shiny::runApp(system.file("examples", "plotlyEvents", package = "plotly"))
<强> app.R 强>
library(shiny)
library(plotly)
ui <- fluidPage(
radioButtons("plotType", "Plot Type:", choices = c("ggplotly", "plotly")),
plotlyOutput("plot"),
verbatimTextOutput("hover"),
verbatimTextOutput("click"),
verbatimTextOutput("brush"),
verbatimTextOutput("zoom")
)
server <- function(input, output, session) {
output$plot <- renderPlotly({
# use the key aesthetic/argument to help uniquely identify selected observations
key <- row.names(mtcars)
if (identical(input$plotType, "ggplotly")) {
p <- ggplot(mtcars, aes(x = mpg, y = wt, colour = factor(vs), key = key)) +
geom_point()
ggplotly(p) %>% layout(dragmode = "select")
} else {
plot_ly(mtcars, x = mpg, y = wt, key = key, mode = "markers") %>%
layout(dragmode = "select")
}
})
output$hover <- renderPrint({
d <- event_data("plotly_hover")
if (is.null(d)) "Hover events appear here (unhover to clear)" else d
})
output$click <- renderPrint({
d <- event_data("plotly_click")
if (is.null(d)) "Click events appear here (double-click to clear)" else d
})
output$brush <- renderPrint({
d <- event_data("plotly_selected")
if (is.null(d)) "Click and drag events (i.e., select/lasso) appear here (double-click to clear)" else d
})
output$zoom <- renderPrint({
d <- event_data("plotly_relayout")
if (is.null(d)) "Relayout (i.e., zoom) events appear here" else d
})
}
shinyApp(ui, server, options = list(display.mode = "showcase"))
他们还有关于主要GitHub页面的链接刷新和点击的示例: