How do i set the X-Axis as Date Array in highcharts.js simple highcharts.chart plot or .stockChart?
Question
I can succesffuly chart the data in a table on mysql
$sql = "SELECT TradeDate as date, LScore2 as L FROM levermann_kurz WHERE Stock_short='MSFT' ORDER BY TradeDate desc";
$stock2 = mysqli_query($mysqli,$sql);
$stock2 = mysqli_fetch_all($stock2,MYSQLI_ASSOC);
$stock2 = json_encode(array_column($stock2,'L'),JSON_NUMERIC_CHECK);
and the body
<script type="text/javascript">
// load("getdata.php")
var data_stock1 = <?php echo $stock1; ?>;
var data_stock2 = <?php echo $stock2; ?>;
Highcharts.chart('container', {
title: {
text: 'Levermann Scores'
},
subtitle: {
text: 'TradeFlags'
},
// xAxis: {
// categories: dates
// },
yAxis: {
title: {
text: 'Levermann Score'
}
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'middle'
},
plotOptions: {
series: {
label: {
connectorAllowed: false
},
//pointStart: 0
}
},
series: [{
name: 'AAPL',
data: data_stock1
}, {
name: 'MSFT',
data: data_stock2
// }, {
// name: 'External Data',
// data: [null, null, 7988, 12169, 15112, 22452, 34400, 34227]
}],
responsive: {
rules: [{
condition: {
maxWidth: 500
},
chartOptions: {
legend: {
layout: 'horizontal',
align: 'center',
verticalAlign: 'bottom'
}
}
}]
}
});
</script>
</body>
But just can't get it to display the Date array as the x-Axis It just has values 0,1,2,3,4,... etc.
What am i doing wrong? How do you set the x-axis array in the highchart plot?
I thought you could simply pass through a 2 column array with Dates in the first column and Values in the second column ?
Please help!
I have looked on highcharts documentation but it doesnt seem to explain to me how i should pass the data to the chart container. which format it should be?
CONSOLE LOG:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script src="https://code.highcharts.com/modules/series-label.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>
<script src="https://code.highcharts.com/modules/export-data.js"></script>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<script src="https://code.highcharts.com/stock/highstock.js"></script>
</head>
<body>
<div id="container" style="height: 400px; max-width: 800px"></div>
<script type="text/javascript">
// load("getdata.php")
var data_stock1 = [3,2,2,3,3,3,3,3,3,3,3,3,3,3,3,2,3,3,2,3,2,3,2,2,1,-1,0,0,0,0,0,1,1,0,0,-1,0,-1,-1,-1,-1,-1,0,0];
var data_stock2 = [2,3,2,2,2,2,2,2,2,2,2,2,2,1,2,2,3,2,3,3,1,2,0,2,2,2,1,2,2,2,2,2,2,1,2,2,1,2,2,2,2,1,1,2];
var data_datearray = ["2018-05-25","2018-06-01","2018-06-08","2018-06-15","2018-06-22","2018-06-27","2018-07-06","2018-07-20","2018-07-27","2018-08-03","2018-08-10","2018-08-17","2018-08-24","2018-08-31","2018-09-07","2018-09-14","2018-09-21","2018-09-28","2018-10-05","2018-10-12","2018-10-19","2018-10-26","2018-11-02","2018-11-09","2018-11-16","2018-11-23","2018-11-30","2018-12-07","2018-12-14","2018-12-21","2018-12-28","2019-01-04","2019-01-11","2019-01-18","2019-01-25","2019-02-01","2019-02-08","2019-02-15","2019-02-22","2019-03-01","2019-03-08","2019-03-15","2019-03-22","2019-03-29"];
//var seriesOptions = [], seriesCounter = 0, names = ['MSFT', 'AAPL', 'GOOG'];
/**
* Create the chart when all data is loaded
* @returns {undefined}
*/
//function createChart() {
Highcharts.stockChart('container', {
///
title: {
text: 'Levermann Scores'
},
xAxis: {
type: 'datetime',
categories: data_datearray
},
series: [{
name: 'AAPL',
data: data_stock1
}, {
name: 'MSFT',
data: data_stock2
}]
////
// responsive: {
// rules: [{
// condition: {
// maxWidth: 500
// },
// chartOptions: {
// legend: {
// layout: 'horizontal',
// align: 'center',
// verticalAlign: 'bottom'
// }
// }
// }]
// }
});
// end of container }];
//}
console.log(data_stock1)
</script>
</body>
i can get the date into this format with two columns but it wont work in the chart
var data_dual = [{"date":"2018-05-25","L":"3"},{"date":"2018-06-01","L":"2"},{"date":"2018-06-08","L":"2"},{"date":"2018-06-15","L":"3"},{"date":"2018-06-22","L":"3"},{"date":"2018-06-27","L":"3"},{"date":"2018-07-06","L":"3"},{"date":"2018-07-20","L":"3"},{"date":"2018-07-27","L":"3"},{"date":"2018-08-03","L":"3"},{"date":"2018-08-10","L":"3"},{"date":"2018-08-17","L":"3"},{"date":"2018-08-24","L":"3"},{"date":"2018-08-31","L":"3"},{"date":"2018-09-07","L":"3"},{"date":"2018-09-14","L":"2"},{"date":"2018-09-21","L":"3"},{"date":"2018-09-28","L":"3"},{"date":"2018-10-05","L":"2"},{"date":"2018-10-12","L":"3"},{"date":"2018-10-19","L":"2"},{"date":"2018-10-26","L":"3"},{"date":"2018-11-02","L":"2"},{"date":"2018-11-09","L":"2"},{"date":"2018-11-16","L":"1"},{"date":"2018-11-23","L":"-1"},{"date":"2018-11-30","L":"0"},{"date":"2018-12-07","L":"0"},{"date":"2018-12-14","L":"0"},{"date":"2018-12-21","L":"0"},{"date":"2018-12-28","L":"0"},{"date":"2019-01-04","L":"1"},{"date":"2019-01-11","L":"1"},{"date":"2019-01-18","L":"0"},{"date":"2019-01-25","L":"0"},{"date":"2019-02-01","L":"-1"},{"date":"2019-02-08","L":"0"},{"date":"2019-02-15","L":"-1"},{"date":"2019-02-22","L":"-1"},{"date":"2019-03-01","L":"-1"},{"date":"2019-03-08","L":"-1"},{"date":"2019-03-15","L":"-1"},{"date":"2019-03-22","L":"0"},{"date":"2019-03-29","L":"0"}];
or using UNIX_TIMESTAMP i converted the date format into timestamps:
var data_dual = [{"date":"1527206400","L":"3"},{"date":"1527811200","L":"2"},{"date":"1528416000","L":"2"},{"date":"1529020800","L":"3"},{"date":"1529625600","L":"3"},{"date":"1530057600","L":"3"},{"date":"1530835200","L":"3"},{"date":"1532044800","L":"3"},{"date":"1532649600","L":"3"},{"date":"1533254400","L":"3"},{"date":"1533859200","L":"3"},{"date":"1534464000","L":"3"},{"date":"1535068800","L":"3"},{"date":"1535673600","L":"3"},{"date":"1536278400","L":"3"},{"date":"1536883200","L":"2"},{"date":"1537488000","L":"3"},{"date":"1538092800","L":"3"},{"date":"1538697600","L":"2"},{"date":"1539302400","L":"3"},{"date":"1539907200","L":"2"},{"date":"1540512000","L":"3"},{"date":"1541116800","L":"2"},{"date":"1541721600","L":"2"},{"date":"1542326400","L":"1"},{"date":"1542931200","L":"-1"},{"date":"1543536000","L":"0"},{"date":"1544140800","L":"0"},{"date":"1544745600","L":"0"},{"date":"1545350400","L":"0"},{"date":"1545955200","L":"0"},{"date":"1546560000","L":"1"},{"date":"1547164800","L":"1"},{"date":"1547769600","L":"0"},{"date":"1548374400","L":"0"},{"date":"1548979200","L":"-1"},{"date":"1549584000","L":"0"},{"date":"1550188800","L":"-1"},{"date":"1550793600","L":"-1"},{"date":"1551398400","L":"-1"},{"date":"1552003200","L":"-1"},{"date":"1552608000","L":"-1"},{"date":"1553212800","L":"0"},{"date":"1553817600","L":"0"}];
but using this array data_dual in the series will just render a chart with blank.
1 answers
solution1
0 2019-04-05 11:53:42
You need to use a datetime axis and provide dates as timestamps or as a Date objects, in the first elemets of the data array:
Highcharts.chart('container', {
xAxis: {
type: 'datetime'
},
series: [{
data: [
[1262304000000, 29.9],
[1267401600000, 71.5],
[1270080000000, 106.4]
]
}]
});
Or as an object:
series: [{
data: [{
x: 1262304000000,
y: 29.9
},
{
x: 1267401600000,
y: 71.5
},
{
x: 1270080000000,
y: 106.4
}
]
}]
Live demo: http://jsfiddle.net/BlackLabel/7tov823n/
API Reference: https://api.highcharts.com/highcharts/series.column.data
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