Logarithmic axis

author(s): Torstein Hønsi

by Black Label

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">
        This chart shows the use of a logarithmic y-axis. Logarithmic axes can
        be useful when dealing with data with spikes or large value gaps,
        as they allow variance in the smaller values to remain visible.
    </p>
</figure>

CSS

.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 #ebebeb;
    margin: 10px auto;
    text-align: center;
    width: 100%;
    max-width: 500px;
}

.highcharts-data-table caption {
    padding: 1em 0;
    font-size: 1.2em;
    color: #555;
}

.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 tr:nth-child(even) {
    background: #f8f8f8;
}

.highcharts-data-table tr:hover {
    background: #f1f7ff;
}

JavaScript

Highcharts.chart('container', {

    title: {
        text: 'Logarithmic axis demo'
    },

    xAxis: {
        tickInterval: 1,
        type: 'logarithmic',
    },

    yAxis: {
        type: 'logarithmic',
        minorTickInterval: 0.1,
    },

    tooltip: {
        headerFormat: '<b>{series.name}</b><br />',
        pointFormat: 'x = {point.x}, y = {point.y}'
    },

    series: [{
        data: [1, 2, 4, 8, 16, 32, 64, 128, 256, 512],
        pointStart: 1
    }]
});