PROSAGA码农传奇-数据融合-将变量设置为Google Visualization Data Aggregation的结果

<div class =“post-text”itemprop =“text”>
  <P>
     <code>
      google.visualization.data.group
    </code>
     返回常规
    <a href="https://developers.google.com/chart/interactive/docs/reference#datatable-class" rel="nofollow noreferrer">
       <code>
        DataTable
      </code>
       类
    </A>
  </p>
  <P>
    使用
    <a href="https://developers.google.com/chart/interactive/docs/reference#DataTable_getValue" rel="nofollow noreferrer">
      图表方法
    </A>
     <code>
      getValue
    </code>
     获取组表中的值
  </p>
  <P>
     <code>
      getValue(rowIndex, colIndex)
    </code>
  </p>
  <P>
    帖子中的组表返回一行，
    <BR/>
    
所以使用以下内容来了解价值......
  </p>
   <pre>
    <code>
      groupView.getValue(0, 1)

</code>
  </pre>
  <P>
    请参阅以下工作代码段...
  </p>
  <P>
  </p>
  <div class =“snippet”data-lang =“js”data-hide =“false”data-console =“true”data-babel =“false”>
    <div class =“snippet-code”>
       <pre class="snippet-code-js lang-js prettyprint-override">
        <code>
          google.charts.load('current', {
  callback: drawChart,
  packages: ['gauge']
});

function drawChart() {
  //Create DataTable
  var data = new google.visualization.DataTable();

//Add Columns
  data.addColumn('string', 'CW');
  data.addColumn('string', 'Business Division');
  data.addColumn('string', 'Product');
  data.addColumn('number', 'Cost');
  data.addColumn('number', 'Quantity');
  data.addColumn('number', 'Age (d)');
  data.addColumn('string', 'Actual State');

//Add Rows
  var dataArray = [];
  //replaced with manual sample data
  for (i = 0; i < 5; i++) {
    dataArray.push([
      'CW' + i,
      'GS',
      'line' + i,
      10,
      99,
      99,
      'state' + i
    ]);
  }
  data.addRows(dataArray);

//Create Data View
  var view = new google.visualization.DataView(data);
  view.setColumns([1, 3]);

//Create Data Aggregation
  var groupView = google.visualization.data.group(view, [{
      column: 0,
      type: 'string'
  }], [{
      column: 1,
      aggregation: google.visualization.data.sum,
      type: 'number'
  }]);

//Options
  var options = {
      max: groupView.getValue(0, 1)
  };

//Instantiate and draw chart, passing in options.
  var chart = new google.visualization.Gauge(document.getElementById('chart_div'));
  chart.draw(groupView, options);
}
        </code>
      </pre>
       <pre class="snippet-code-html lang-html prettyprint-override">
        <code>
          <script src="https://www.gstatic.com/charts/loader.js"></script>
<div id="chart_div"></div>
        </code>
      </pre>
    </DIV>
  </DIV>
  <P>
  </p>
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