Lollipop Chart

A lollipop plot is basically a barplot, where the bar is transformed in a line and a dot. It shows the relationship between a numeric and a categoric variable. However it is more appealing and convey as well the information. It is especially useful when you have several bars of the same height: it avoids to have a cluttered figure and a Moiré effect. The Cleveland dot plot is a handy variation, allowing to compare the value of 2 numeric values for each group.


Example Color Themes

Example Fonts

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Show Code

Tools

<head>
  <!-- Include the CanvasXpress library in your HTML file -->
  <link rel="stylesheet" href="https://www.canvasxpress.org/dist/canvasXpress.css" type="text/css"/>
  <script src="https://www.canvasxpress.org/dist/canvasXpress.min.js"></script>
</head>

<body>

  <!-- Create a canvas element for the chart with the desired dimensions -->
  <div>
    <canvas id="canvasId" width="600" height="600"></canvas>
  </div>


  <!-- Create a script to initialize the chart -->
  <script>

    // Create the data for the graph
    var data = {
       "y" : {
          "data" : [
            [10,15,20,30,40,70,80,90]
          ],
          "smps" : ["S1","S2","S3","S4","S5","S6","S7","S8"],
          "vars" : ["V1"]
       }
    }
    
    
    // Create the configuration for the graph
    var config = {
       "barLollipopFactor":1.8,
       "barType":"lollipop",
       "colorScheme":"CanvasXpress",
       "graphType":"Bar",
       "legendKeyBackgroundBorderColor":"rgba(255,255,255,0)",
       "legendKeyBackgroundColor":"rgba(255,255,255,0)",
       "showTransition":false,
       "widthFactor":0.6
    }
    

    // Call the CanvasXpress function to create the graph
    var cX = new CanvasXpress("canvasId", data, config);


  </script>

</body>

library(canvasXpress)
y=read.table("https://www.canvasxpress.org/data/cX-lollipop-dat.txt", header=TRUE, sep="\t", quote="", row.names=1, fill=TRUE, check.names=FALSE, stringsAsFactors=FALSE)
canvasXpress(
  data=y,
  barLollipopFactor=1.8,
  barType="lollipop",
  colorScheme="CanvasXpress",
  graphType="Bar",
  legendKeyBackgroundBorderColor="rgba(255,255,255,0)",
  legendKeyBackgroundColor="rgba(255,255,255,0)",
  showTransition=FALSE,
  widthFactor=0.6
)
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