I want to manipulate the var series before I configure the highchart-code.
But I get 68 series!! instead of my 2 series I defined before.
What can be the error?
var series;
function refresher() {
series = "[{ name = 'test1', data = data[0]},{ name = 'test', data = data[1]}]";
$.getJSON(url,
function(data) {
chart = new Highcharts.StockChart
({
chart: { renderTo: 'container', zoomType: 'x', type: 'line', width: 900 },
legend: { enabled: true, verticalAlign:'bottom' },
title: { text: 'You see the data of the last measured hour!' },
credits: { enabled: false },
xAxis: { type: 'datetime', title: { text: 'time' } },
yAxis: { title: { text: 'hallo' } },
rangeSelector:{ enabled: false },
navigator : { enabled: false },
series: series,
tooltip: { xDateFormat: '%e. %b.%Y %H:%M:%S', valueDecimals: 2, },
exporting: { enabled: true },
});
// Format the y-data.
Highcharts.numberFormat(this.y, 2, '.', ',');
});
};
The problem is in the series variable.
1st of all, it's a string, and not an object.
I don't know why you are using it like that but if you really want it to be a string, you'll have to eval it when given it to the series object:
...
series: eval(series)
...
Also, it's not:
series = "[{ name = 'test1', data = data[0]},{ name = 'test', data = data[1]}]"
The equal signs are incorrect.
It has to be:
series = "[{ name: 'test1', data: data[0]},{ name: 'test', data: data[1]}]"
(I've replaced the equal signs by colons.)
Related
I have a simple line chart where I am trying to display time series data which have start and end. Like this
{"beginTimeSeconds": 1626145840, "endTimeSeconds": 1626232240, "totalTimeInSeconds": 0, "uri": "/logout"}
However, as per HighChart config timeseries only accept one timestamp like this.
Highcharts.chart('container', {
chart: {
zoomType: 'x'
},
xAxis: {
type: 'datetime'
},
yAxis: {
title: {
text: 'test'
}
},
legend: {
enabled: false
},
series: [{
type: 'line',
name: 'Test',
data: [
[1167609600000, 0.7537], // Only one timestamp
[1167696040000, 0.7537] // Only one timestamp
]
}]
});
Is there any way to pass range so that tooltip shows Start date - end date followed by value.
So by default in Highcharts, your point contains 4 main attributes which you can specify. Its x and y value, its name, and color. API reference: https://api.highcharts.com/highcharts/series.line.data
If you'd like your point to have some more attributes you can add them and e.g use one of them in the tooltip. Something like that: https://jsfiddle.net/BlackLabel/k49z8mv0/
Highcharts.chart('container', {
chart: {
zoomType: 'x'
},
xAxis: {
type: 'datetime'
},
yAxis: {
title: {
text: 'test'
}
},
legend: {
enabled: false
},
tooltip: {
formatter: function() {
return 'Point value is: ' + this.y + '<br/>The total time in Second
equals: ' + this.point.totalTimeInSeconds + '<br/>' +
Highcharts.dateFormat('%Y-%m-%d', this.point.beginTimeSeconds) + ' -
' + Highcharts.dateFormat('%Y-%m-%d', this.point.endTimeSeconds);
}
},
series: [{
type: 'line',
name: 'Test',
data: [{
x: 1167609600000,
y: 0.7537,
beginTimeSeconds: 1626145840,
endTimeSeconds: 1626232240,
totalTimeInSeconds: 0
},
{
x: 1167696040000,
y: 0.7537,
beginTimeSeconds: 1626145840,
endTimeSeconds: 1626232240,
totalTimeInSeconds: 1
}
]
}]
});
If that doesn't answer your question please precise what the issue is.
I am trying to bring highcharts to show only hours and minues in xAxis, presently it's showing the full timestamp including the date. I am using the following code:
var chartT = new Highcharts.Chart({
chart:{ renderTo : 'chart-temperature' },
title: { text: 'Temperatur' },
series: [{
showInLegend: false,
data: IstTemp
}],
plotOptions: {
line: { animation: false,
dataLabels: { enabled: true }
},
series: { color: '#059e8a' }
},
xAxis: {
type: 'datetime',
dateTimeLabelFormats: { minute: '%H:%M' },
categories: reading_time
},
yAxis: {
title: { text: 'Temperatur (Celsius)' }
},
credits: { enabled: false }
});
Where is my mistake?
You can't use datetime and category axis type at the same time. As a solution you can:
Use datetime axis and preprocess your data to the format: [timestamp, y]
var IstTemp = [11.6, 12.5];
var reading_time = ["2021-02-12 14:35:52", "2021-02-12 14:38:52"];
var seriesData = IstTemp.map(function(dataEl, index){
return [new Date(reading_time[index]).getTime(), dataEl];
});
Live demo: http://jsfiddle.net/BlackLabel/7gdvzfo6/
Use categories with modified string
var IstTemp = [11.6, 12.5];
var reading_time = ["2021-02-12 14:35:52", "2021-02-12 14:38:52"];
var processedCategories = reading_time.map(function(dateStr){
return dateStr.split(' ')[1].split(':').slice(0, 2).join(':');
});
Live demo: http://jsfiddle.net/BlackLabel/2udw738c/
I want to use a button to make the candlestick visible by day, week, and month, but I want the moving average line to not change automatically (only the day moving average line).
_chart = new Highcharts.stockChart('container', {
rangeSelector: {
selected: 2
},
title: {
text: 'AAPL Stock Price'
},
legend: {
enabled: true
},
plotOptions: {
series: {
showInLegend: true
}
},
series: [{
type: 'ohlc',
id: 'aapl',
name: 'AAPL Stock Price',
data: data
}, {
type: 'sma',
linkedTo: 'aapl'
}, {
type: 'sma',
linkedTo: 'aapl',
params: {
period: 50
}
}]
});
});
change(function() {
var unit = $(this).val();
console.log(123123);
_chart.series.forEach(function(ser) {
ser.update({
dataGrouping: {
units: [ [unit, [1]] ]
}
}, false);
});
console.log(unit);
_chart.redraw(unit);
console.log(_chart);
});
i create an empty highchart and add a series to the chart.
This is my code:
chart = new Highcharts.Chart({
chart: {
renderTo: 'hccontainer',
zoomType: 'x'
},
title: {
text: 'Telegramme'
},
subtitle: {
text: 'Offline'
},
exporting: {
enabled: false
},
legend: {
enabled: true
},
xAxis: {
type: 'datetime',
tickPixelInterval: 150,
maxZoom: 20 * 1000
},
yAxis: {
minPadding: 0.2,
maxPadding: 0.2,
title: {
text: 'Value',
margin: 80
}
}
});
And here for example i add a series:
$.ajax({
'url' : 'ajax.php',
'type': 'GET',
'data': {
'action' : 'eibmon_hctel',
'hsid': hsid,
'grp': grp,
'df': datefrom,
'dt': dateto
},
success: function(items) {
chart.addSeries({
name: series_name,
data: items
}, true);
},
cache: false
});
The ajax.php send this result:
{"1441614256000":"1","1441586308000":"0","1441523112000":"1","1441515496000":"0","1441360423000":"1"
,"1441344522000":"1","1441341118000":"0","1441254853000":"1","1441238297000":"0","1441094577000":"1"
,"1441086395000":"0","1441086143000":"1","1441085875000":"0","1441085622000":"1"}
The chart will be redrawn but the line is missing. In the legend the new series get displayed. Is it not possible to start with an empty chart?
Thanks
Looks like your JSON structure is icorrect. You should have a x/y fields and number values.
Example:
{
x:"1441614256000",
y:"1"
}
After loading data, you can convert your json into correct form, parsing data in preprocessing.
I have a chart that looks like this:
http://jsfiddle.net/rtGFm/37/
I would like to have a "sort" button that sorts high to low each category, putting the columns in a different order for each category. Is this possible with HighCharts?
var chart;
$(document).ready(function() {
chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
type: 'column'
},
title: {
text: ''
},
subtitle: {
text: ''
},
xAxis: {
categories: [
'foreclosures',
'nuisances',
'distance from city center'
]
},
yAxis: {
min: 0,
title: {
text: ''
}
},
tooltip: {
formatter: function() {
return ''+
this.x +': '+ this.y +' mm';
}
},
plotOptions: {
column: {
pointPadding: 0.2,
borderWidth: 0
}
},
series: [{
name: 'Alger Heights',
data: [49.9, 71.5, 50]
}, {
name: 'Shawmut Hills',
data: [83.6, 78.8, 67]
}, {
name: 'Baxter',
data: [48.9, 38.8, 100]
}, {
name: 'Midtown',
data: [42.4, 33.2, 80]
}, {
type: 'scatter',
data: [55,60,70],
marker: {
symbol: 'square',
lineColor: '#FFFFFF',
lineWidth: 1,
radius: 8
},
name: 'Average'
}]
});
});
I had the same problem :) highcharts still does not provide any solution for this problem, but it is flexibel enough so that you can sort anyway - just by javascript.
Put your data in a separate value:
var dataMain = [{name:"test1",data:5}, {name:"test1",data:1},{name:"test1",data:2}]
In series you can just add a function which sorts your data:
series: (function(){
for(var i = 0;i<dataMain.length;i++){
dataMain[i].data = dataMain[i].data.sort(function(a,b){
return a[0] - b[0] ;
})
return dataMain;
}
Hope I got everything wright.
Got it to work, I believe. Trick is to add each column in correct order as a new serie with same type (column), reuse colors and hide legend...
Very hackish, the JS code to sort like 8 categories independently will be ugly but the result looks fine.
Edit: Updated fiddle, I see the spacing between the categories grows with series, doesn't look supernice.
My jsfiddle is here
$(function () {
$('#container').highcharts({
chart: {
inverted: true
},
title: {
text: 'Series sorted in within categories'
},
xAxis: {
categories: ['January']
},
series: [{
type: 'column',
name: 'Stockholm',
data: [{x:0, y:95, color: Highcharts.getOptions().colors[0]}]
}, {
type: 'column',
name: 'Göteborg',
data: [{x:0, y:80, color: Highcharts.getOptions().colors[1]}]
}, {
type: 'column',
name: 'Göteborg',
data: [{x: 1, name: 'February', y: 98, color: Highcharts.getOptions().colors[1] // VGR's color
}],
showInLegend: false,
dataLabels: {
enabled: false
}
}, {
type: 'column',
name: 'Stockholm',
data: [{x: 1, name: 'February', y: 80, color: Highcharts.getOptions().colors[0] // VGR's color
}],
showInLegend: false,
dataLabels: {
enabled: false
}
}]
});
});
br,
Jens
I think this can be done,
this may look like a little work around.
since we have a limited number of columns i mean 4 in the given example.
if we have arrays with sorting done with respect to each series then we can handle them.
on button click we can update the chart with new set of data as well as category array.
May be there is no solution from the APi.
According to me this is a possible approach.
Thanks,