Scatter plot

author(s): Torstein Hønsi

HTML

<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>
<script src="https://code.highcharts.com/modules/export-data.js"></script>
<script src="https://code.highcharts.com/modules/accessibility.js"></script>

<figure class="highcharts-figure">
    <div id="container"></div>
    <p class="highcharts-description">
        Scatter charts are often used to visualize the relationships
        between data in two dimensions. This chart is visualizing european
        olympic contestants by sport, showing how various sports prefer different
        characteristics.
    </p>
</figure>

CSS

body {
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        "Apple Color Emoji",
        "Segoe UI Emoji",
        "Segoe UI Symbol",
        sans-serif;
    background: var(--highcharts-background-color);
    color: var(--highcharts-neutral-color-100);
}

#container {
    max-width: 800px;
    height: 500px;
    margin: auto;
}

.highcharts-figure,
.highcharts-data-table table {
    min-width: 360px;
    max-width: 800px;
    margin: 1em auto;
}

.highcharts-data-table table {
    font-family: Verdana, sans-serif;
    border-collapse: collapse;
    border: 1px solid var(--highcharts-neutral-color-10, #e6e6e6);
    margin: 10px auto;
    text-align: center;
    width: 100%;
    max-width: 500px;
}

.highcharts-data-table caption {
    padding: 1em 0;
    font-size: 1.2em;
    color: var(--highcharts-neutral-color-60, #666);
}

.highcharts-data-table th {
    font-weight: 600;
    padding: 0.5em;
}

.highcharts-data-table td,
.highcharts-data-table th,
.highcharts-data-table caption {
    padding: 0.5em;
}

.highcharts-data-table thead tr,
.highcharts-data-table tbody tr:nth-child(even) {
    background: var(--highcharts-neutral-color-3, #f7f7f7);
}

.highcharts-description {
    background: light-dark(#f2f6f2, #323232);
    border-radius: 0 4px 4px 0;
    border-left: 2px solid light-dark(#1d6aff, #fff);
    font-size: 0.8rem;
    font-style: italic;
    padding: 8px 16px;
    margin: 2em 10px 1em;
}

TypeScript

type Athlete = {
    sport: string;
    weight: number;
    height: number;
    continent: string;
};

const series: Highcharts.SeriesScatterOptions[] = [{
    name: 'Triathlon',
    type: 'scatter',
    id: 'triathlon',
    marker: {
        symbol: 'triangle'
    }
},
{
    name: 'Volleyball',
    type: 'scatter',
    id: 'volleyball',
    marker: {
        symbol: 'square'
    }
},
{
    name: 'Basketball',
    type: 'scatter',
    id: 'basketball',
    marker: {
        symbol: 'circle'
    }
}];

async function getData(): Promise<Athlete[]> {
    const response = await fetch(
        'https://www.highcharts.com/samples/data/olympic2012.json'
    );
    return response.json();
}

getData().then(data => {
    series.forEach(s => {
        s.data = data
            .filter(athlete =>
                athlete.sport === s.id &&
                athlete.weight > 0 &&
                athlete.height > 0 &&
                athlete.continent === 'Europe'
            )
            .map(athlete => [athlete.weight, athlete.height]);
    });

    Highcharts.chart('container', {
        chart: {
            type: 'scatter',
            plotBorderColor: 'var(--highcharts-neutral-color-10, #e6e6e6)',
            plotBorderWidth: 1,
            plotBorderRadius: 5,
            zooming: {
                type: 'xy'
            }
        },
        title: {
            text: 'European olympic athletes by height and weight',
            align: 'left'
        },
        subtitle: {
            text: 'Source: <a href="https://www.theguardian.com/sport/datablo' +
                'g/2012/aug/07/olympics-2012-athletes-age-weight-height">The ' +
                'Guardian</a>',
            align: 'left'
        },
        xAxis: {
            labels: {
                format: '{value} kg'
            },
            gridLineWidth: 1,
            lineWidth: 0,
            startOnTick: true,
            endOnTick: true,
            tickLength: 0
        },
        yAxis: {
           ...