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                     <a href="../../notes/comparison.html">                                                    Comparison Table                            </a>                                </li>            <li class="chapter " data-level="1.8.2" data-path="../../notes/extensions.html">                            <a href="../../notes/extensions.html">                                                    Popular Extensions                            </a>                                </li>            <li class="chapter " data-level="1.8.3" data-path="../../notes/license.html">                            <a href="../../notes/license.html">                                                    License                            </a>                                </li>                </ul>                    </li>            <li class="divider"></li>    <li>        <a href="https://www.gitbook.com" target="blank" class="gitbook-link">            Published with GitBook        </a>    </li></ul>                </nav>                        </div>    <div class="book-body">                    <div class="body-inner">                                    <div class="book-header" role="navigation">        <!-- Title -->    <h1>        <i class="fa fa-circle-o-notch fa-spin"></i>        <a href="../.." >Category</a>    </h1></div>                    <div class="page-wrapper" tabindex="-1" role="main">                        <div class="page-inner">                            <div class="search-plus" id="book-search-results">    <div class="search-noresults">                                    <section class="normal markdown-section">                                                                <h1 id="category-cartesian-axis">Category Cartesian Axis</h1><p>If global configuration is used, labels are drawn from one of the label arrays included in the chart data. If only <code>data.labels</code> is defined, this will be used. If <code>data.xLabels</code> is defined and the axis is horizontal, this will be used. Similarly, if <code>data.yLabels</code> is defined and the axis is vertical, this property will be used. Using both <code>xLabels</code> and <code>yLabels</code> together can create a chart that uses strings for both the X and Y axes.</p><p>Specifying any of the settings above defines the x axis as <code>type: category</code> if not defined otherwise. For more fine-grained control of category labels it is also possible to add <code>labels</code> as part of the category axis definition. Doing so does not apply the global defaults.</p><h2 id="category-axis-definition">Category Axis Definition</h2><p>Globally:</p><pre><code class="lang-javascript"><span class="hljs-keyword">let</span> chart = <span class="hljs-keyword">new</span> Chart(ctx, {    type: ...    data: {        labels: [<span class="hljs-string">'January'</span>, <span class="hljs-string">'February'</span>, <span class="hljs-string">'March'</span>, <span class="hljs-string">'April'</span>, <span class="hljs-string">'May'</span>, <span class="hljs-string">'June'</span>],        datasets: ...    },});</code></pre><p>As part of axis definition:</p><pre><code class="lang-javascript"><span class="hljs-keyword">let</span> chart = <span class="hljs-keyword">new</span> Chart(ctx, {    type: ...    data: ...    options: {        scales: {            xAxes: [{                type: <span class="hljs-string">'category'</span>,                labels: [<span class="hljs-string">'January'</span>, <span class="hljs-string">'February'</span>, <span class="hljs-string">'March'</span>, <span class="hljs-string">'April'</span>, <span class="hljs-string">'May'</span>, <span class="hljs-string">'June'</span>],            }]        }    }});</code></pre><h2 id="tick-configuration-options">Tick Configuration Options</h2><p>The category scale provides the following options for configuring tick marks. They are nested in the <code>ticks</code> sub object. These options extend the <a href="./#tick-configuration">common tick configuration</a>.</p><table><thead><tr><th>Name</th><th>Type</th><th>Default</th><th>Description</th></tr></thead><tbody><tr><td><code>labels</code></td><td><code>Array[String]</code></td><td>-</td><td>An array of labels to display.</td></tr><tr><td><code>min</code></td><td><code>String</code></td><td></td><td>The minimum item to display. <a href="#min-max-configuration">more...</a></td></tr><tr><td><code>max</code></td><td><code>String</code></td><td></td><td>The maximum item to display. <a href="#min-max-configuration">more...</a></td></tr></tbody></table><h2 id="min-max-configuration">Min Max Configuration</h2><p>For both the <code>min</code> and <code>max</code> properties, the value must be in the <code>labels</code> array. In the example below, the x axis would only display "March" through "June".</p><pre><code class="lang-javascript"><span class="hljs-keyword">let</span> chart = <span class="hljs-keyword">new</span> Chart(ctx, {    type: <span class="hljs-string">'line'</span>,    data: {        datasets: [{            data: [<span class="hljs-number">10</span>, <span class="hljs-number">20</span>, <span class="hljs-number">30</span>, <span class="hljs-number">40</span>, <span class="hljs-number">50</span>, <span class="hljs-number">60</span>]        }],        labels: [<span class="hljs-string">'January'</span>, <span class="hljs-string">'February'</span>, <span class="hljs-string">'March'</span>, <span class="hljs-string">'April'</span>, <span class="hljs-string">'May'</span>, <span class="hljs-string">'June'</span>],    },    options: {        scales: {            xAxes: [{                ticks: {                    min: <span class="hljs-string">'March'</span>                }            }]        }    }});</code></pre>                                                                </section>                                </div>    <div class="search-results">        <div class="has-results">                        <h1 class="search-results-title"><span class='search-results-count'></span> results matching "<span class='search-query'></span>"</h1>            <ul class="search-results-list"></ul>                    </div>        <div class="no-results">                        <h1 class="search-results-title">No results matching "<span class='search-query'></span>"</h1>                    </div>    </div></div>                        </div>                    </div>                            </div>                                            <a href="./" class="navigation navigation-prev " aria-label="Previous page: Cartesian">                    <i class="fa fa-angle-left"></i>                </a>                                                <a href="linear.html" class="navigation navigation-next " aria-label="Next page: Linear">                    <i class="fa fa-angle-right"></i>                </a>                                        </div>    <script>        var gitbook = gitbook || []; 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