<script type="text/javascript">
     //google.charts.load('current', {'packages':['bar']});
     google.charts.load('current', {'packages':['corechart']});
      google.charts.setOnLoadCallback(drawChart);

      function drawChart() {
           var data = new google.visualization.arrayToDataTable(<?php echo $jsonData ?>);

        var options = {
          chart: {
            title: 'Detalle Gráfico'

           // subtitle: 'Sales, Expenses, and Profit: 2014-2017',
          },
          bars: 'vertical', // Required for Material Bar Charts.
          vAxis: {format: 'decimal'},
          height: 400,
          colors: ['#1b9e77', '#d95f02', '#7570b3'],
          chart

        };

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

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

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

        btns.onclick = function (e) {

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


  <div id="dual_x_div" style="width: 900px; height: 500px;text-align: center;"></div>