# Yahoo! UI Library

### Charts Widget 2.8.1

Yahoo! UI Library > charts > CategoryAxis.js (source view)
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    /**
     * A type of axis that displays items in categories.
     *
     * @namespace YAHOO.widget
     * @class CategoryAxis
     * @constructor
     */
    YAHOO.widget.CategoryAxis = function()
    {
    	YAHOO.widget.CategoryAxis.superclass.constructor.call(this);
    };

    YAHOO.lang.extend(YAHOO.widget.CategoryAxis, YAHOO.widget.Axis,
    {
    	type: "category",

    	/**
    	 * A list of category names to display along this axis.
    	 *
    	 * @property categoryNames
    	 * @type Array
    	 */
    	categoryNames: null,

    	/**
    	 * Indicates whether or not to calculate the number of categories (ticks and labels)
    	 * when there is not enough room to display all labels on the axis. If set to true, the axis
    	 * will determine the number of categories to plot. If not, all categories will be plotted.
    	 *
    	 * @property calculateCategoryCount
    	 * @type Boolean
    	 */
    	calculateCategoryCount: false
    });

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