Highstock bottom chart not shown - javascript

I'm using one the official highstock chart demo to create something similar with 2 charts stacked on top of each other. The problem is that the bottom chart (volume) is not displayed jsfiddle
A brief explanation of aapl-ohlc.json file will be helpful.
...
const data = JSON.parse(document.getElementById('ohlc-data').innerHTML);
// split the data set into ohlc and volume
const ohlc = data.map((a) => [a[0], a[1], a[2], a[3], a[4]])
const volume = data.map((a) => [a[0], a[5]])
// set the allowed units for data grouping
const groupingUnits = [
[
'week', // unit name
[1] // allowed multiples
],
[
'month', [1, 2, 3, 4, 6]
]
]
// create the chart
Highcharts.stockChart('container', {
legend: {
enabled: false
},
credits: {
enabled: false
},
exporting: {
enabled: false
},
scrollbar: {
enabled: false
},
rangeSelector: {
selected: 4,
inputEnabled: false
},
title: {
text: ''
},
yAxis: [{
labels: {
align: 'right',
x: -3
},
title: {
text: ''
},
height: '60%',
lineWidth: 2
}, {
labels: {
align: 'right',
x: -3
},
title: {
text: ''
},
top: '65%',
height: '35%',
offset: 0,
lineWidth: 2
}],
tooltip: {
split: true
},
series: [{
type: 'candlestick',
name: 'AAPL',
data: ohlc,
dataGrouping: {
units: groupingUnits
}
}, {
type: 'column',
name: 'Volume',
data: volume,
yAxis: 1,
dataGrouping: {
units: groupingUnits
}
}],
navigator: {
enabled: false
}
});

This line:
const volume = data.map((a) => [a[0], a[5]])
Points to an element that doesn't exist. a[5] is not defined (there are only five elements to each sub array, no sixth element), therefore you have no y values in your data, and therefore no data series to display.
I don't know what data element is supposed to represent volume, but for reference, just to show that it does work, here is an updated fiddle using
const volume = data.map((a) => [a[0], a[1]])
https://jsfiddle.net/jlbriggs/0t9rq1f7/1/
EDIT:
Note that in the demo example that you based your fiddle on, the file that they use is aapl-ohlcv.json, not aapl-ohlc.json, which does in fact have a 6th data element in each sub array.
https://www.highcharts.com/samples/data/jsonp.php?filename=aapl-ohlcv.json
https://github.com/highcharts/highcharts/blob/master/samples/data/aapl-ohlcv.json

Related

Highcharts how to add treemap upon click event on line chart?

Anyone know how to add treemap upon click event on line chart point? Here's my JSFiddle link:
https://jsfiddle.net/ssoj_tellig/d6pfv1bg/19/
When I click on the line chart on the point 0.63 at the third week of sample5, I'd like a treemap to appear at the bottom with the values loaded in var mytreemap_data (or any other values for the demo, doesn't matter). I'd like to understand how it'd work.
Many thanks for your help!
var mytreemap_data = [1528675200000,0.1,0.2,0.3,0.15,0.25]
// How can we show a tree map at the bottom with the values above
// upon clicking on the point 0.63 for the third week of sample 5 ??
const chart_1 = new Highcharts.stockChart('mychart_1', {
chart: {
zoomType: 'x',
type: 'spline',
},
xAxis: {
type: 'datetime',
tickInterval: 86400000 * 7, //show each week
ordinal: false,
labels:{
formatter: function() {
return Highcharts.dateFormat('%d %b %Y', this.value);
},
align: 'right',
rotation: -90,
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max: 1,
tickInterval: 0.1,
title: {
text: 'Score'
}
},
legend: {
enabled: true,
layout: 'vertical',
align: 'right',
verticalAlign: 'top'
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credits : {
enabled : false
},
navigator :{
enabled: true
},
scrollbar :{
enabled: true
},
rangeSelector: {
enabled: true,
allButtonsEnabled: true,
buttons: [{
type: 'month',
count: 1,
text: '1m'
}, {
type: 'all',
text: 'All'
}],
selected: 1
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series: [{
name: 'sample1',
data: [[1527465600000,0.42242020440407213],[1528070400000,0.38747025807155444],[1528675200000,0.42678078180915674],[1529280000000,0.4091743882448146],
[1529884800000,0.4238743811604633],[1530489600000,0.39724984766613747],[1531094400000,0.39441610665405447],[1531699200000,0.41417484302834673],
[1532304000000,0.39208450506752085],[1532908800000,0.4026164523657783]],
}, {
name: 'sample2',
data: [[1527465600000,0.44242020440407213],[1528070400000,0.40747025807155444],[1528675200000,0.44678078180915674],[1529280000000,0.4291743882448146],
[1529884800000,0.4438743811604633],[1530489600000,0.41724984766613747],[1531094400000,0.41441610665405447],[1531699200000,0.43417484302834673],
[1532304000000,0.41208450506752085],[1532908800000,0.4226164523657783]],
}, {
name: 'sample3',
data: [[1527465600000,0.42242020440407213],[1528070400000,0.42747025807155444],[1528675200000,0.46678078180915674],[1529280000000,0.4491743882448146],
[1529884800000,0.4638743811604633],[1530489600000,0.43724984766613747],[1531094400000,0.43441610665405447],[1531699200000,0.45417484302834673],
[1532304000000,0.43208450506752085],[1532908800000,0.4426164523657783]],
}, {
name: 'sample4',
data: [[1527465600000,0.52242020440407213],[1528070400000,0.48747025807155444],[1528675200000,0.52678078180915674],[1529280000000,0.5091743882448146],
[1529884800000,0.5238743811604633],[1530489600000,0.49724984766613747],[1531094400000,0.49441610665405447],[1531699200000,0.51417484302834673],
[1532304000000,0.49208450506752085],[1532908800000,0.5026164523657783]],
}, {
name: 'sample5',
data: [[1527465600000,0.62242020440407213],[1528070400000,0.58747025807155444],[1528675200000,0.62678078180915674],[1529280000000,0.6091743882448146],
[1529884800000,0.6238743811604633],[1530489600000,0.59724984766613747],[1531094400000,0.59441610665405447],[1531699200000,0.61417484302834673],
[1532304000000,0.59208450506752085],[1532908800000,0.6026164523657783]],
}],
plotOptions: {
series: {
label: {
connectorAllowed: false,
},
pointstart: 1527465600000,
// pointInterval = 2,
tooltip: {
valueDecimals: 2
},
}
},
responsive: {
rules: [{
condition: {
maxWidth: 500
},
}]
}
});
document.getElementById('button').addEventListener('click', e => {
var series = chart_1.series[0];
var series1 = chart_1.series[1]
var series2 = chart_1.series[2];
if (series.visible & series1.visible & series2.visible) {
series.hide();
series1.hide();
series2.hide();
e.target.innerHTML = 'Show samples 1-3';
} else {
series.show();
series1.show();
series2.show();
e.target.innerHTML = 'Hide samples 1-3';
}
})
Use click event callback function for a point and create another chart with treemap series, for example:
plotOptions: {
series: {
point: {
events: {
click: function() {
Highcharts.chart('treemapContainer', {
series: [{
type: 'treemap',
data: mytreemap_data
}]
})
}
}
},
...
}
}
Live demo: https://jsfiddle.net/BlackLabel/rh7cfxLj/
API Reference: https://api.highcharts.com/highcharts/plotOptions.series.point.events.click

Sankey: Show dynamically text on x-axis

How to show dynamic text on x-axis based on transition. In my first case, I am getting two transitions(football -> basketball & basketball -> Gerard) so I will be showing two labels just like below
But When we get only one transition so how to handle label on the x-axis. What I need is when only one transition is there one label should only come. In the below case Semi-Final label should come.
Highcharts.chart('container', {
chart: {
showAxes: true
},
title: {
text: ''
},
xAxis: {
type: "category",
categories: ['Semi-Final','Final Phase'],
max: 2,
labels: {
x: 10,
y: 30,
},
lineColor: 'transparent',
tickLength: 0
},
yAxis: {
visible: false
},
series: [{
keys: ['from', 'to', 'weight'],
data: [
['Football', 'Cricket', 20 ],
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type: 'sankey',
}]
});
The number of displayed labels depends on axis extremes. You can make max property dependent on the number of data:
events: {
load: function() {
var max = this.series[0].nodeColumns.length - 2;
this.xAxis[0].update({
max: max
})
}
}
Live demo: https://jsfiddle.net/BlackLabel/7s5h41qr/
API: https://api.highcharts.com/highcharts/xAxis.max

Highcharts JSON formatting - splitting up and preprocessing data for charts?

I'm trying to get data from this JSON: https://min-api.cryptocompare.com/data/histominute?fsym=BTC&tsym=USD&limit=60&aggregate=3&e=CCCAGG
into hightcharts.
I have this chart that is working properly, but I can't get proper formatting for JSON above: still learning javascript. And I like to learn on project, piece by piece, with some cause at least :)
Also, this timestamp is bugging me...
$.getJSON('https://www.highcharts.com/samples/data/jsonp.php?filename=aapl-ohlcv.json&callback=?', function (data) {
var ohlc = [],
volume = [],
dataLength = data.length,
groupingUnits = [[
'week',
[1]
], [
'month',
[1, 2, 3, 4, 6]
]],
i = 0;
for (i; i < dataLength; i += 1) {
ohlc.push([
data[i][0], // the date
data[i][1], // open
data[i][2], // high
data[i][3], // low
data[i][4] // close
]);
volume.push([
data[i][0], // the date
data[i][5] // the volume
]);
}
// create the chart
Highcharts.stockChart('container', {
rangeSelector: {
selected: 1
},
title: {
text: 'AAPL Historical'
},
yAxis: [{
labels: {
align: 'right',
x: -3
},
title: {
text: 'OHLC'
},
height: '60%',
lineWidth: 2,
resize: {
enabled: true
}
}, {
labels: {
align: 'right',
x: -3
},
title: {
text: 'Volume'
},
top: '65%',
height: '35%',
offset: 0,
lineWidth: 2
}],
tooltip: {
split: true
},
series: [{
type: 'candlestick',
name: 'AAPL',
data: ohlc,
dataGrouping: {
units: groupingUnits
}
}, {
type: 'column',
name: 'Volume',
data: volume,
yAxis: 1,
dataGrouping: {
units: groupingUnits
}
}]
});
});
Could someone help out? How to separate properly info from that JSON and format it so that highcharts can visualize it?
Thanks in advance for any help!
Refer to this live demo: http://jsfiddle.net/kkulig/8qk0mjzp/
Data property from object fetched via getJSON() contains the data to be plotted on the chart.
Every point has JSON format (not an array as in the code that you posted) so its properties need to be referred like this:
for (i; i < dataLength; i += 1) {
ohlc.push([
data[i].time * 1000, // the date
data[i].open, // open
data[i].high, // high
data[i].low, // low
data[i].close // close
]);
volume.push([
data[i].time * 1000, // the date
data[i].volumefrom, // low
data[i].volumeto // high
]);
}

Plot float up & down beyond y-axis in StockChart while dragging navigator

Here is my js code:
Highcharts.stockChart('utilizations', {
chart: {
zoomType: 'x'
},
title: {
text: 'KPI'
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subtitle: {
text: 'CCE & PRB Utilization (%)'
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rangeSelector: {
buttons: [{
type: 'day',
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text: '1d'
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type: 'day',
count: 3,
text: '3d'
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type: 'day',
count: 7,
text: '1w'
}, {
type: 'day',
count: 14,
text: '2w'
}, {
type: 'all',
text: 'All'
}],
selected: 1
},
yAxis: {
labels: {
formatter: function () {return this.value + '%';}
},
max: 100,
min: 0,
tickInterval: 20,
plotLines: [{
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width: 2,
color: 'silver'
},{
value: 70,
width: 1,
color: 'red'
}]
},
tooltip: {
crosshairs: true,
shared: true
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plotOptions: {
series: {
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showInNavigator: true
}
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'middle'
},
xAxis: {
type: 'datetime'
},
series: [{
name: 'CCE Util',
type: 'spline',
yAxis: 0,
data: (function(){
var data = [];
for (var i = 0; i < result.length; i++) {
var time = result[i]["time"];
var kpi = result[i]["cce"];
data.push([time, kpi]);
}
return data;
})(),
tooltip: {
valueSuffix: '%',
valueDecimals: 2,
split: true
}
},{
name: 'PRB Util',
type: 'spline',
yAxis: 0,
data: (function(){
var data = [];
for (var i = 0; i < result.length; i++) {
var time = result[i]["time"];
var kpi = result[i]["prb"];
data.push([time, kpi]);
}
return data;
})(),
tooltip: {
valueSuffix: '%',
valueDecimals: 2,
split: true
}
And my plot:
While dragging the navigator bar, sometimes the plot goes to the right position and sometimes it looks like the capture above. According to my experience, the plot position is related to the left end (let's note this as A) position of the navigator selector. When A is on the lowest part of the whole plot in navigator, the shown plot positioned well; and when A goes like the capture above, the plot shown sunk.
Please refer to a short demo with 100 data here: https://jsfiddle.net/ghqyvo0x/
How can I make my plot stable?
Your problem is caused by series.compare: property, which you set in plotOptions configuration object. If you delete this line of code, everything should work as you need. We could read in Highstock API:
Compare the values of the series against the first non-null, non- zero value in the visible range.
plotOptions: {
series: {
//compare: 'percent',
showInNavigator: true
}
}
JSFiddle example
API Reference

Pass 3 values in highcharts series

I have a scatter chart from Highcharts, in the y axis i put 'Intensity' values,and in the x axis i have datetimes (month,day,year).
chart: {
type: 'scatter',
zoomType: 'xy',
renderTo: 'chartContainer'
},
rangeSelector: {
enabled: true
},
xAxis: {
title: {
enabled: true
},
type: 'datetime',
dateTimeLabelFormats:{
month: '%e. %b %Y',
year: '%b'
},
startOnTick: true,
endOnTick: true,
showLastLabel: true
},
yAxis: {
title: {
text: 'Intensity'
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min: 0,
max: 100
},
plotOptions: {
scatter: {
marker: {
radius: 5,
states: {
hover: {
enabled: true,
lineColor: 'rgb(100,100,100)'
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},
states: {
hover: {
marker: {
enabled: false
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}
},
events: {
click: function(event) {
showMoreData();
}
}
}
},
series: [{
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color: 'rgba(144,36,58, .8)',
data: getDataParsed()
}]
These data are loaded from another function getDataParsed(), where I do a ajax GET and get multiple data . The question is how i pass more data (also Intensity and Datetimes) so i can used later in the scatter chart.
function getDataParsed() {
var serie = [];
var i=0;
dolorCollect.forEach(function (dato) {
var arr = dato.FECHA_INICIO.split("/");
var hour = dato.HORA_INICIO.split(":");
serie[i]= [Date.UTC(arr[2],arr[1]-1,arr[0],hour[0],hour[1]),dato.INTENSIDAD_DOLOR];
i++;
});
return serie;
}
To have more data in each data point in series' data you can:
do as Rahul Sharma suggested in his comment - set data point as object with named properties. More info in API - see 3rd way of data format:
An array of objects with named values. The objects are point configuration objects as seen below. If the total number of data points exceeds the series' turboThreshold, this option is not available.
data: [{
x: 1,
y: 2,
name: "Point2",
color: "#00FF00"
}, {
x: 1,
y: 4,
name: "Point1",
color: "#FF00FF"
}]
or set data as array of arrays - as you do now, but with more data in point array. To allow Highcharts proper way to decode your new format set keys.
So same data can be set using code like:
series:[{
data: [
[1, 2, "Point2", "#00FF00"],
[1, 4, "Point1", "#FF00FF"]
],
keys: ['x','y','name','color'],
...

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