[英]Google Charts bar/column chart getColumnRange() unexpected value from DataView
[英]Getting value from DataView class in google chart to a javascript array
我正在嘗試將Google圖表的DataView類中的值轉換為JavaScript數組,但似乎無法弄清楚。 任何幫助都非常感謝。
這是我的代碼:
<html>
<head>
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
<script type="text/javascript">
google.load('visualization', '1', {'packages': ['table', 'corechart','controls']});
google.setOnLoadCallback(initialize);
function initialize() {
// The URL of the spreadsheet to source data from.
var query = new google.visualization.Query(
'https://docs.google.com/spreadsheets/d/11w3bG72wkWpqAneTRNwQWKzPsMaQgveYCe5OPvbq9CA/edit#gid=0');
query.setQuery("select A, D");
query.send(draw);
}
function draw(response) {
if (response.isError()) {
alert('Error in query');
}
var frequency = response.getDataTable();
var format1 = new google.visualization.DateFormat({pattern: "Hms"});
format1.format(frequency, 0);
var view = new google.visualization.DataView(frequency);
var table = new google.visualization.Table(document.getElementById('table_div'));
view.setColumns([0]);
// to get the values from the view to array arr
var i;
var arr = [];
for(i in view){
arr [i] = view.getValue(i, 0);
}
var x;
for(x in arr){
document.write(arr[x]);
}
}
</script>
</head>
<body>
<div id="table_div">
</div>
</body>
</html>
嘗試這個...
var i;
var arr = [];
for (i = 0; i < view.getNumberOfRows(); i++) {
arr.push(view.getValue(i, 0));
}
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