为Google饼图创建数据

Question

我猜这可能更像是一个数学问题，但我还是要试试!我使用Google饼状图(https://developers.google.com/chart/interactive/docs/gallery/piechart)来显示我的数据。

我怎么能创建一个完整的饼状图，目前它只是创建微小的切片，不能填满整个饼!

数据是从Wordpress收集的——它只是计算有多少公司是学术的，商业的或临床的。这些变量如下所示:

<p>Academic<?php echo $academic;?></p>
<p>Business<?php echo $business;?></p>
<p>Clinical<?php echo $clinical;?></p>

对于我的测试数据，输出数字1,2和1。通过将变量放入代码中，它创建了小块，我如何填充饼呢?

这个饼在谷歌的例子中加起来是24，那么方程是什么呢?附言:我数学很烂!

---

      google.load("visualization", "1", {packages:["corechart"]});
      google.setOnLoadCallback(drawVisualization);
function drawVisualization() {
  // Create and populate the data table.
        var data = google.visualization.arrayToDataTable([
          ['Task', 'Hours per Day'],
          ['Academic', '<?php echo $academic; ?>'],
          ['Business', '<?php echo $business; ?>'],
          ['Clinical', '<?php echo $clinical; ?>']
        ]);
        var options = {
          backgroundColor: 'none',
          chartArea: {width:"221",height:"221"},
          width:'221',
          height:'221',
          legend: {position: 'none'},
          tooltip: {trigger: 'none'},
          enableInteractivity: false,
          slices: {0: {color: '#a95892'}, 1:{color: '#d7663a'}, 2:{color: '#316086'}}
        };
  // Create and draw the visualization.
  new google.visualization.PieChart(document.getElementById('chart_div')).
      draw(data, options);
}

Answer 1

这应该可以工作(至少在Code Playground中对我来说是这样的):

function drawVisualization() {
var data = google.visualization.arrayToDataTable([
    ['Type', 'Amount'],
    ['Academic', <?php echo $academic;?>],
    ['Business', <?php echo $business;?>],
    ['Clinical', <?php echo $clinical;?>]]);
new google.visualization.PieChart(document.getElementById('visualization')).draw(data, {title:"how many?"});
}

http://h3n.info/pie.png