Welcome to the Highcharts JS (highcharts) Options Reference

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

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zAxis.categories

If categories are present for the xAxis, names are used instead of numbers for that axis.

Since Highcharts 3.0, categories can also be extracted by giving each point a name and setting axis type to category. However, if you have multiple series, best practice remains defining the categories array.

Example: categories: ['Apples', 'Bananas', 'Oranges']