[visualization-api] calc: "stringify"

['Gregor Willenberg' via Google Visualization API]

Dear all,

Iam a newbe. Please help me. How can i add a percent sign to a view?


<script type="text/javascript" 
src="https://www.gstatic.com/charts/loader.js";></script>
<div id="chart_div" style="border: 1px solid 
#ccc;margin:0px;padding0px;"></div>
<script type="text/javascript">
google.charts.load('current', {packages: ['corechart', 'bar']});
google.charts.setOnLoadCallback(drawBasic);

function drawBasic() {
    var data1 = new google.visualization.DataTable();
    data1.addColumn('string', 'Name');
    data1.addColumn('number', 'Prozent');
    data1.addColumn({type: 'string', role: 'style'});
    data1.addRows([
['gleich', 12.5, '#006495'],['jetzt', 12.5, '#004C70'],['sofort', 75, 
'#0093D1']  ]);
 
    var data = new google.visualization.DataTable();
    data.addColumn('string', 'Name');
    data.addColumn('number', 'Anzahl');
    data.addColumn({type: 'string', role: 'style'});
    data.addRows([
['gleich', 1 , '#006495'],['jetzt', 1 , '#004C70'],['sofort', 6 , '#0093D1'] 
 ]);
var view = new google.visualization.DataView(data1);
view.setColumns([0, 1,
                       {
calc: "stringify",
label : "Prozent",
                        sourceColumn: 1,
                        type: "string", 
fontName: 'Arial',
                        role: "annotation" },2]); 
      var options = {
      backgroundColor: "transparent",
chartArea:{left:10,right:10,top:0,width:"100%",height:"100%"},
width:170,
backgroundColor: "transparent",
height:200, 
        title: '',
fontName: 'Arial',
        titlePosition: 'none',
bar: {groupWidth: "65%", groupHight: "65%"},
        hAxis: {
            gridlines: {color: 'transparent'},
textPosition: 'none',
          baselineColor: 'transparent'
        },
        series: { 1: {color: 'black'} },
        legend: {'position': 'none'},
        vAxis: {
          gridlines: {color: 'transparent'},
textPosition: 'none', 
          baselineColor: 'transparent'
        }
      };

      var chart = new 
google.visualization.BarChart(document.getElementById('chart_div'));

      chart.draw(data1,options );
 chart.draw(view,options );
    }
</script>

Best regards

Gregor

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