renderPieChart: Render the Pie Chart Plotted by ECharts into Shiny...

In ECharts2Shiny: Embedding Interactive Charts Generated with ECharts Library into Shiny Applications

Description

renderPieChart() function helps render the pie chart into Shiny application.

Usage

renderPieChart(div_id, data,
               theme = 'default', radius, center_x,center_y,
               show.label = TRUE,
               show.legend = TRUE, show.tools = TRUE,
               font.size.legend= 12,
               animation = TRUE,
               hyperlinks = NULL,
               running_in_shiny)

Arguments

div_id	The division id users specified for this chart. The division will be specified in ui.R.
data	The data used for the plotting. It should be either a vector or a data.frame. If it's a vector, it should be made up of all the elements you want to count and plot, like c("a", "a", "b", "a", "b", "c"). If it's a data.frame, the data must be made up of only two columns, "name" and "value". The "value" column must be numeric or integer.
theme	Which ECharts theme to use. Valid values include "default", "roma", "infographic", "macarons", "vintage", "shine", "caravan", "dark-digerati", "jazz", and "london".
radius	The radius of the pie chart. The default value is "75%".
center_x	The position of the center of the pie chart (x axis). Default value is "50%".
center_y	The position of the center of the pie chart (y axis). Default value is "50%".
show.label	Whether display the leble for the pie chart. The default value is TRUE.
show.legend	Whether display the legends. The default value is TRUE.
show.tools	Whether display the tool bar. The default value is TRUE.
font.size.legend	The font size of legend bar. The default value is 12.
animation	Whether display the chart with animation. The default value is TRUE.
hyperlinks	Vector. Users can link each element in the chart to a hyperlink (URL like http://***.com). Please note this is only supported when the data is in data.frame format, and the length of the "hyperlinks" vector should be the same to the number of rows in the data given. Note that if hyperlinks are available, the fonts in the pop-up window will be in skyblue color and italic style.
running_in_shiny	If we're actually running this in a Shiny library, or we're simply doing testing. Default valus is "TRUE". If "FALSE", the function will print what it's supposed to evaluate.

Note

Users need to state the division for the chart first, with tags$div() function of Shiny packages. Please note that the division id must keep unique (duplicated division id will cause error).

Author(s)

Xiaodong DENG

(ECharts library is authored by Baidu team)

Examples

if (interactive()) {
  library(shiny)
  library(ECharts2Shiny)


  dat <- c(rep("Type-A", 8),
             rep("Type-B", 5),
             rep("Type-C", 1))


  # Server function -------------------------------------------
  server <- function(input, output) {
    renderPieChart(div_id = "test",
                    data = dat)
  }

  # UI layout -------------------------------------------------
  ui <- fluidPage(
    # We MUST load the ECharts javascript library in advance
    loadEChartsLibrary(),

    tags$div(id="test", style="width:50%;height:400px;"),
    deliverChart(div_id = "test")
  )

  # Run the application --------------------------------------
  shinyApp(ui = ui, server = server)
}

ECharts2Shiny documentation built on May 2, 2019, 8:57 a.m.