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categoryAxis.name String (default: "primary")

The unique axis name. Used to associate a series with a category axis using the series.categoryAxis option.

Important Using multiple category axes requires setting an explicit name for each of them.

Example - set the category axis name

<div id="chart"></div>
  categoryAxis: [
    { name: "month", categories: [ "Jan", "Feb", "Mar" ] },
    { name: "year", categories: [ 2012 ] }
  series: [
    { categoryAxis: "month", data: [1, 2, 3] }
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