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<section class="normal markdown-section">
<h1 id="mixed-chart-types">Mixed Chart Types</h1>
<p>With Chart.js, it is possible to create mixed charts that are a combination of two or more different chart types. A common example is a bar chart that also includes a line dataset.</p>
<p>Creating a mixed chart starts with the initialization of a basic chart.</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">var</span> myChart = <span class="hljs-keyword">new</span> Chart(ctx, {
type: <span class="hljs-string">'bar'</span>,
data: data,
options: options
});
</code></pre>
<p>At this point we have a standard bar chart. Now we need to convert one of the datasets to a line dataset.</p>
<pre><code class="lang-javascript"><span class="hljs-keyword">var</span> mixedChart = <span class="hljs-keyword">new</span> Chart(ctx, {
type: <span class="hljs-string">'bar'</span>,
data: {
datasets: [{
label: <span class="hljs-string">'Bar Dataset'</span>,
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>]
}, {
label: <span class="hljs-string">'Line Dataset'</span>,
data: [<span class="hljs-number">50</span>, <span class="hljs-number">50</span>, <span class="hljs-number">50</span>, <span class="hljs-number">50</span>],
<span class="hljs-comment">// Changes this dataset to become a line</span>
type: <span class="hljs-string">'line'</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>]
},
options: options
});
</code></pre>
<p>At this point we have a chart rendering how we'd like. It's important to note that the default options for a line chart are not merged in this case. Only the options for the default type are merged in. In this case, that means that the default options for a bar chart are merged because that is the type specified by the <code>type</code> field.</p>
<p><div class="chartjs-wrapper"><canvas id="chartjs-7" class="chartjs" width="undefined" height="undefined"></canvas><script>new Chart(document.getElementById("chartjs-7"),{"type":"bar","data":{"labels":["January","February","March","April"],"datasets":[{"label":"Bar Dataset","data":[10,20,30,40],"borderColor":"rgb(255, 99, 132)","backgroundColor":"rgba(255, 99, 132, 0.2)"},{"label":"Line Dataset","data":[50,50,50,50],"type":"line","fill":false,"borderColor":"rgb(54, 162, 235)"}]},"options":{"scales":{"yAxes":[{"ticks":{"beginAtZero":true}}]}}});</script></div></p>
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