IMEX.mes.dashboard/wwwroot/Plugins/Chart.js-master/docs/charts/mixed.md

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.

{% chartjs %} {

"type": "bar",
"data": {
    "labels": [
        "January",
        "February",
        "March",
        "April"
    ],
    "datasets": [{
        "label": "Bar Dataset",
        "data": [10, 20, 30, 40],
        "borderColor": "rgb(255, 99, 132)",
        "backgroundColor": "rgba(255, 99, 132, 0.2)"
    }, {
        "label": "Line Dataset",
        "data": [50, 50, 50, 50],
        "type": "line",
        "fill": false,
        "borderColor": "rgb(54, 162, 235)"
    }]
},
"options": {
    "scales": {
        "yAxes": [{
            "ticks": {
                "beginAtZero": true
            }
        }]
    }
}

} {% endchartjs %}