Following is an example of a histogram chart with a custom bucket size. We’ve already seen the configuration used to draw this chart in the Google Charts Configuration Syntax chapter. So, let’s see the complete example.
Configurations
We’ve used the bucketSize configuration of the histogram to change the default bucket size of the histogram chart.
// Set chart options
var options = {
histogram: { bucketSize: 5 }
};
Example
googlecharts_histogram_bucket.htm
<html>
<head>
<title>Google Charts </title>
<script type = "text/javascript" src = "https://www.gstatic.com/charts/loader.js">
</script>
<script type = "text/javascript">
google.charts.load('current', {packages: ['corechart']});
</script>
</head>
<body>
<div id = "container" style = "width: 550px; height: 400px; margin: 0 auto">
</div>
<script language = "JavaScript">
function drawChart() {
// Define the chart to be drawn.
var data = google.visualization.arrayToDataTable([
['Student Roll No', 'height'],
['1', 80],['2', 55],['3', 68],['4', 80],['5', 54],
['6', 70],['7', 85],['8', 78],['9', 70],['10', 58],
['11', 90],['12', 65],['13', 88],['14', 82],['15', 65],
['16', 86],['17', 45],['18', 62],['19', 84],['20', 75],
['21', 82],['22', 75],['23', 58],['24', 70],['25', 85]
]);
// Set chart options
var options = {
title: 'Students height, in cms',
legend: { position: 'none' },
histogram: { bucketSize: 5 }
};
// Instantiate and draw the chart.
var chart = new google.visualization.Histogram(document.getElementById('container'));
chart.draw(data, options);
}
google.charts.setOnLoadCallback(drawChart);
</script>
</body>
</html>
Result
Verify the result.
