在Javascript中格式化文件中的CSV值以填充Google Chart

Question

我有一个CSV文件，其值为date value1 value2。我想用这些数据填充Google图表。使用jquery-csv.js，我正在读取值。

<script type="text/javascript" src="js/jquery.csv.js"></script>
<script type="text/javascript">

  // Load the Visualization API and the piechart package.
  google.load('visualization', '1.0', {'packages':['corechart']});

  // Set a callback to run when the Google Visualization API is loaded.
  google.setOnLoadCallback(drawChart);

  // Callback that creates and populates a data table,
  // instantiates the pie chart, passes in the data and
  // draws it.
  function drawChart() {
   $.get("data.csv", function(csvString) {
      // transform the CSV string into a 2-dimensional array
      var arrayData = $.csv.toArrays(csvString, {onParseValue: $.csv.hooks.castToScalar});
//alert(arrayData);
      // this new DataTable object holds all the data
      var data = new google.visualization.arrayToDataTable(arrayData);
      alert(data.getColumnLabel(0));
//Here I alert like 06/11/201522 
The usual google chart code follows
});
      }
    </script>

当我提醒data.getColumnLabel（0）时，我得到第一行的所有值的组合。我该如何拆分？我希望每个列数据都在一个单独的变量中。任何帮助表示赞赏。