Chart.js - Scatter Chart

Chart.js scatter charts are basically based on simple line charts but their X-axis is changed to a linear axis. While creating a scatter chart, you must pass the data as objects containing X and Y properties.

Following are the namespaces to be used in bubble chart for dataset properties −

  • data.datasets[index] − It provides options for this dataset only.

  • options.datasets.scatter − It provides options for all scatter datasets.

  • options.datasets.line − It provides options for all line datasets.

  • options.elements.point − It provides options for all the point elements.

  • Options − It provides options for the whole chart

We need to use type: "scatter" for creating the scatter chart.

Example

Let’s take an example with the help of which we will create a scatter chart −

<!DOCTYPE>
<html>
<head>
   <meta charset- "UTF-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1" />
   <title>chart.js</title>
</head>
<body>
   <canvas id="chartId" aria-label="chart" height="300" width="580"></canvas>
   <script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.1.1/chart.min.js"></script>
   <script>
      var chrt = document.getElementById("chartId").getContext("2d");
      var chartId = new Chart(chrt, {
         type: 'scatter',
         data: {
            labels: ["HTML", "CSS", "JAVASCRIPT", "CHART.JS", "JQUERY", "BOOTSTRP"],
            datasets: [{
               label: "online tutorial subjects",
               data: [
                  {x:10, y:14},
                  {x:25, y:35},
                  {x:21, y:20},
                  {x:35, y:28},
                  {x:15, y:10},
                  {x:19, y:30},
               ],
               backgroundColor: ['yellow', 'aqua', 'pink', 'lightgreen', 'gold', 'lightblue'],
               borderColor: ['black'],
               radius: 8,
            }],
         },
         options: {
            responsive: false,
            scales: {
               x: {
                  type: 'linear',
                  position: 'bottom,'
               }
            }
         },
      });
   </script>
</body>
</html>

Output

Scatter Chart
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