JS API Reference

Welcome to the Highcharts Stock JS (highstock) Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

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plotOptions.roc

Rate of change indicator (ROC). The indicator value for each point is defined as:

(C - Cn) / Cn * 100

where: C is the close value of the point of the same x in the linked series and Cn is the close value of the point n periods ago. n is set through period.

This series requires linkedTo option to be set.

Configuration options for the series are given in three levels:

  1. Options for all series in a chart are defined in the plotOptions.series object.
  2. Options for all roc series are defined in plotOptions.roc.
  3. Options for one single series are given in the series instance array.
Highcharts.chart('container', {
    plotOptions: {
        series: {
            // general options for all series
        },
        roc: {
            // shared options for all roc series
        }
    },
    series: [{
        // specific options for this series instance
        type: 'roc'
    }]
});

TypeScript:

  • the type option must always be set.
  • when accessing an array of series, the combined set of all series types is represented by Highcharts.SeriesOptionsType . Narrowing down to the specific type can be done by checking the type property.
if (chart.options.series?.[0]?.type === roc) {
    // code specific to the roc series
}

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Highcharts Stock v12.1.1 - Generated from branch master (commit 590c1a9a2d), on Fri Dec 20 2024 08:18:02 GMT+0100 (Central European Standard Time)