# Mixed Chart Types

With Chart.js, it is possible to create mixed charts that are a combination of two or more different chart types. A common example is a bar chart that also includes a line dataset.

Creating a mixed chart starts with the initialization of a basic chart.

    var myChart = new Chart(ctx, {
      type: 'bar',
      data: data,
      options: options
    });

At this point we have a standard bar chart. Now we need to convert one of the datasets to a line dataset.

    var mixedChart = new Chart(ctx, {
      type: 'bar',
      data: {
        datasets: [{
              label: 'Bar Dataset',
              data: [10, 20, 30, 40]
            }, {
              label: 'Line Dataset',
              data: [50, 50, 50, 50],

              // Changes this dataset to become a line
              type: 'line'
            }],
        labels: ['January', 'February', 'March', 'April']
      },
      options: options
    });

At this point we have a chart rendering how we'd like. It's important to note that the default options for a line chart are not merged in this case. Only the options for the default type are merged in. In this case, that means that the default options for a bar chart are merged because that is the type specified by the `type` field.

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