Bar Chart example

by annesha88

HTML

<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
Events and Participants per EDR 

<div id="barchart_material">
</div>

JavaScript

google.charts.load('current', {
   'packages': ['bar']
 });
 google.charts.setOnLoadCallback(drawChart);

 function drawChart() {
   var data = google.visualization.arrayToDataTable([
     ['Event ', 'Average'],
     ['Commits', 4],
     ['Comments', 7],
     ['Reactions', 1],
     ['Participants', 1]
   ]);
   var options = {
     chart: {
       title: 'Events and Participants per EDR',
       subtitle: '7th March - 30th July',
     },
     bars: 'horizontal', // Required for Material Bar Charts.
     hAxis: {
       format: 'decimal'
     },
     height: 400,
     colors: ['#1b9e77', '#d95f02', '#7570b3']
   };

   var chart = new google.charts.Bar(document.getElementById('barchart_material'));

   chart.draw(data, google.charts.Bar.convertOptions(options));

   var btns = document.getElementById('btn-group');

   btns.onclick = function(e) {

     if (e.target.tagName === 'BUTTON') {
       options.hAxis.format = e.target.id === 'none' ? '' : e.target.id;
       chart.draw(data, google.charts.Bar.convertOptions(options));
     }
   }
 }