我有json數據的值,但不是顯示值我想顯示值不在我的json數據中的值。如何讓var像ecgvalue中的select count(*)一樣? 這是我的代碼如何改變計數數據的值
<script type="text/javascript">
$(function() {
var processed_json = new Array();
$.getJSON('http://localhost:8080/query', function (data) {
// Populate series
for (i = 0; i < data.length; i++) {
processed_json.push([data[i].id_data, data[i].ecgvalue]);
}
// draw chart
$('#container2').highcharts({
chart: {
type: "column"
},
title: {
text: "ECG Graph"
},
xAxis: {
type: 'category',
allowDecimals: false,
title: {
text: "Id Data"
}
},
yAxis: {
title: {
text: "Value"
}
},
series: [{
name: 'ECG value',
data: processed_json
}]
});
});
});
</script>
,這是我的JSON
[{"id_data":1,"ecgvalue":3.3871},{"id_data":2,"ecgvalue":1.56892},{"id_data":3,"ecgvalue":1.60802},{"id_data":4,"ecgvalue":2.09677},{"id_data":5,"ecgvalue":1.99902},{"id_data":6,"ecgvalue":1.97947}]
我想改變y軸上的值從ecgvalue來算,這可能嗎?
你是什麼意思的'從ecgvalue計數'。你想累積ecgvalues? – Iceman
所以你想得到這樣的圖表? http://jsfiddle.net/0xzobrae/1/ –