I use Highstock to display a graph showing the number of visitors in column and I need the zoom to display the number of visitors per day, per month and per year
In my graph I can display a number of visitor per day, but I would like display a number of visitor per month and per year too.
But when I look my graph (per month) I don't have a graph with 12 column, I have a graph with 365 column (one per day).
I use the type datetime for xAxis, but it doesn't work...
x rangeSelector: {
inputDateFormat:'%d.%m.%Y',
inputEditDateFormat:'%d.%m.%Y',
buttonTheme: {
width: 80
},
buttons: [{
type: 'day',
count: 7,
text: 'day'
}, {
type: 'month',
count: 12,
text: 'month'
}, {
type: 'year',
count: 1,
text: 'years'
}],
selected: 0
},
Axis: {
minTickInterval: 24 * 3600 * 1000,
type: 'datetime',
title: {
text: 'Time'
},
dateTimeLabelFormats: {
day: '%d.%m<br/>%Y'
}
}
How can I have a graph with "a addition of the visitors per column" ?
Below is what I get now. The first graph is OK, but the second, it's not OK. I would 12 columns and not 365.
Per Days:
Per Years:
Range selector buttons affecting to the time span which should be displayed on a chart. If you want to display specific unit on a chart, you need to use forced dataGrouping, see:
http://api.highcharts.com/highstock#plotOptions.series.dataGrouping.units
http://api.highcharts.com/highstock#plotOptions.series.dataGrouping.forced
Example could be found here: http://www.highcharts.com/stock/demo/candlestick-and-volume
Related
I am using highcharts/highstock and I send some data to the client.
I tried various sets of settings, but I cannot force x axis to stop on a certain date.
For example, I create a chart that has data from 20/3/2019 to 25/3/2019. The interval must always be 5 minutes.
The starting point is correct, it starts in 20/3/2019.
But the last point is always a day more. Its about 35 more points of 26/3/2019, instead of stopping at 25/3/2019.
*if this changes anything, the starting point should be 20/3/2019 00:00 , but it actually starts at 20/3/2019 03:00 in highcharts.
My data are
{
time:{
useUTC:false
},
boost: {
enabled: true,
allowForce:true,
usePreallocated:true,
useGPUTranslations: true
},
chart: {
type: "line",
zoomType: 'x'
},
title: {
text: item.title
},
xAxis: {
type: 'datetime',
tickInterval: 5 * 60 * 1000 , /*5 min */
max: pointStop,
labels: {
format:'{value:%H:%M:%S}'
},
dateTimeLabelFormats: {
second: '%H:%M:%S',
minute: '%H:%M',
hour: '%H:%M',
day: '%b. %e',
week: '%b. %e',
month: '%b. %y',
year: '%Y'
}
},
yAxis: {
title: {
text: item.title
},
alignTicks:'left',
textAlign:'left',
align:'middle',
opposite:false
},
series: [
{
boostThreshold: 150,
name: item.title,
pointStart: pointStart,
pointInterval: 5 * 60 * 1000,
data: item.array,
dataGrouping:{
approximation: 'average',
enabled:true,
forced:true,
groupAll:true,
groupPixelWidth:20
}
}
]
}
What am I doing wrong?
Thanks
It sounds like an issue setting the tick count. The documentation states
If a tickAmount is set, the axis may be extended beyond the set max in order to reach the given number of ticks. The same may happen in a chart with multiple axes, determined by chart. alignTicks, where a tickAmount is applied internally.
You need to disable oridinal option, which is enabled by default in Highstock:
xAxis: {
ordinal: false,
...
}
Live demo: http://jsfiddle.net/BlackLabel/6rqcLhp0/
API Reference: https://api.highcharts.com/highstock/xAxis.ordinal
I have a chart with two yAxis. And I want both to be grouped by date. But in my chart the last value of both series are ending up in differnt xAxis line. I assume this is because of the time differences. I need to group these points based on the date so that the last points of both series will align in the same line of xAxis. This is my javascript code.
Highcharts.stockChart('container', {
yAxis: [{
title: {
text: 'y axis 1',
},
opposite: false,
showEmpty: false,
},
{
title: {
text: 'y axis 2',
},
opposite: true,
showEmpty: false,
},
],
series: [{
yAxis: 0,
data: series1,
},
{
yAxis: 1,
data: series2,
},
],
});
And this is my jsfiddle. Can anyone please help me?
You can loop through your data and round timestamps to the nearest date:
function roundDate(timeStamp) {
timeStamp -= timeStamp % (24 * 60 * 60 * 1000); //subtract amount of time since midnight
return new Date(timeStamp).getTime();
}
function loopThroughData(data) {
data.forEach(function(el) {
el[0] = roundDate(el[0])
});
}
loopThroughData(series1);
loopThroughData(series2);
Live demo: https://jsfiddle.net/BlackLabel/zhbt4gmw/
Useful thread: Round a timestamp to the nearest date
I want to show multiple lines on a chart plotting numbers and dates. I want to X Axis to always show all the months, starting at January through to December, even if there is only data for, say, february and march. I have created a fiddle here. How can I do this? You can see in the fiddle that only the months I have data for show.
I would also like the X axis to show 'Jan', 'Feb' etc, and no numbers. Is this possible?
My code so far is:
$('#container').highcharts({
title: {
text: 'Chart reflow is set to true'
},
subtitle: {
text: 'When resizing the window or the frame, the chart should resize'
},
xAxis: {
type: "datetime"
},
series: [{
data:[[1456444800000,173682],[1456531200000,21136],[1457049600000,21136],[1457395200000,199158],[1457913600000,413265],[1458777600000,21136],[1459209600000,199158],[1459987200000,413265],[1460505600000,21136],[1461024000000,199158],[1461715200000,413265],[1462406400000,199158]]
}]
});
Set a min and max value for your x axis:
xAxis: {
type: "datetime",
tickInterval:86400000 * 30,
min: Date.UTC(2016,0,1),
max: Date.UTC(2016,11,31)
}
Example:
http://jsfiddle.net/jlbriggs/ejjtc73h/2/
I am using highcharts.js to generate my graph. Actually , I am formatting time and populating in x-axis ticks and I am giving Y-axis label. when there is single json response both the x-axis ticks and y-axis labels are coming properly but when there is more than a single response x-axis ticks get disbled and y-axis label is coming without any error.\
xAxis: {
type: 'datetime',
tickInterval: 2 * 3600 * 1000,
min: stime,
max: etime,
dateTimeLabelFormats: {
hour: '%I %p'
},
title: {
text: undefined
}
},
yAxis: {
title: {
text: "Calories History"
},
min: 0
},
help me to resolve the issue I want the y-axis label as well as x-axis ticks when there are more resposne in my json response
I'm using Highcharts/Highstock to plot a fairly large amount of data (~10,000 points). The data consists of Date objects on the X axis and floats on the Y, formatted as such: [[(date), 1.728], [(date), 0.346], ...]. The dates are always 1 hour apart and there are no gaps in the data.
When the chart's range is >= 21 days (such that at least 21 days of data is graphed), the chart appears correctly. Whenever the range is less than that, though, the chart becomes blank and the tooltip displays each point as having a Y-value of 0.0. The Y values for those points do exist in the array (I can see them in Firebug), but they aren't displayed on the chart. Here's how I'm initializing it:
mainChart = new Highcharts.StockChart({
chart: {
renderTo: 'linegraph'
},
rangeSelector: {
buttons: [{
type: 'day',
count: 1,
text: '1 d'
}, {
type: 'week',
count: 1,
text: '1 wk'
}, {
type: 'month',
count: 1,
text: '1 mo'
}, {
type: 'year',
count: 1,
text: '1 yr'
}, {
type: 'all',
text: 'All'
}],
selected: 2
},
series: [{
name: 'Electricity usage (kWh)',
data: graphData,
tooltip: {
valueDecimals: 2,
valueSuffix: "kWh"
}
}],
});
I had the same issue, but it was everything normal with timestamps on X axis.
Resolved it by sorting data by ascending (provided firstly in reversed order).
It turns out that you can't use Date in the X axis of your data. Instead, use the Unix timestamp of the date: Date.getTime(). Major props to FloppyDisk for pointing me in the right direction.