Can you please take a look at This Demo and let me know how I can get rid of the Series 1" index!
and have actual index for the two columns or if not possible simply remove it from the chart?
I also didn't get the way that YAxis is adding Ticks to chart! Is there any way to specify the number of Ticks and Max, Min Values?
$(function () {
$('#container').highcharts({
chart: {
type: 'column'
},
xAxis: {
categories: ['Green', 'Pink']
},
series: [{
data: [{
name: 'Point 1',
color: '#00FF00',
y: 500
}, {
name: 'Point 2',
color: '#FF00FF',
y: 5
}]
}]
});
});
You can remove the legend by adding this object to the container (right after series)
legend: {
enabled: false
}
You can set the tick interval on the yAxis like so:
yAxis: {
tickInterval: 25
}
It's all documented here: http://api.highcharts.com/highcharts
I encourage you to read it and experiment with the examples in-line.
It looks like that column grafs don't support legend. If you want remove it just write under initialize
$(function () {
$('#container').highcharts({
....
....
....
});
$('.highcharts-legend').remove();
});
It should work. :)
Related
I want to create a linechart with HighCharts that has a plotband along every point of the line. Like so: https://imgur.com/a/WVj7uJb
(They are using HighCharts as well, so it must be possible).
However, I can't seem to manage getting it for every point specific. Whenever I add plotbands, it just draws a band using the highest and lowest point like so: https://imgur.com/a/PZdKIBz
How I currently render the chart (note the plotbands part):
Highcharts.chart('chart', {
chart: {
type: 'line',
},
title: {
text: `${this.variable}`,
},
credits: {
enabled: false,
},
xAxis: {
type: 'category',
title: {
text: "Date"
},
},
yAxis: {
title: {
text: this.unit
},
plotBands: [
{
color: "orange",
from: 12,
to: 14
},
{
color: "orange",
from: 10,
to: 13
} // and so on.
]
},
tooltip: {
headerFormat: `<div>Date: {point.key}</div>`,
pointFormat: `<div>${this.unit}: {point.y}</div>`,
useHTML: true,
},
series: seriesList,
} as any);
So exact example would render a plotband from 10 to 14 along the whole linechart, instead of to different points: one from 12 to 14, and one from 10 to 13.
Any ideas as to how I can accomplish this? I have seen something with 'path', but I can't find anything about it.
Thanks in advance.
In that case, you should use arearange series instead of plotBand.
Demo:
https://www.highcharts.com/demo/arearange-line
API Reference:
https://api.highcharts.com/highcharts/series.arearange
I have this fiddle JSfiddle
Here is the reproduced code:
$(function () {
$('#container').highcharts({
chart: {
type: 'bar'
},
xAxis: {
categories: ['Heroku', 'Ruby','Lisp','Javascript','Python','PHP']
},
yAxis: {
categories: ['low','medium','high'],
title: {
text: 'expertise',
align: 'high'
},
labels: {
overflow: 'justify'
}
},
tooltip: {
valueSuffix: ' millions'
},
plotOptions: {
bar: {
dataLabels: {
enabled: true
}
}
},
series: [{
data: ['low','high','low','medium','medium']
}]
});
});
If you look at the fiddle the yAxis does not render and has a value of for every x category. I've been looking at the highcharts api, but I can't seem to get this right. The code makes sense to me but I'm obviously doing something wrong. Can someone point out why the YAxis is not displaying correctly?
As mentioned in my comment, you need to supply the numeric value of the category, not the category name.
In the case of categories, the numeric value is the array index.
Also, in your case, the way you are trying to plot the values, I would add an empty category at the beginning, otherwise your first category of low gets plotted as 0, which doesn't seem right.
So,
categories: ['low','medium','high']
Becomes
categories: ['','low','medium','high'],
And
data: ['low','high','low','medium','medium']
Becomes
data: [1,3,1,2,2]
Updated fiddle:
http://jsfiddle.net/jlbriggs/k64boexd/3/
Check this fiddle:
http://jsfiddle.net/navjot227/k64boexd/2/
Trick is to utilize the formatter function. You can use a similar formatter function on y-axis labels too if that's desired. Though it seems like you need it for data labels for this problem.
$(function() {
$('#container').highcharts({
chart: {
type: 'bar'
},
xAxis: {
categories: ['Heroku', 'Ruby', 'Lisp', 'Javascript', 'Python', 'PHP']
},
yAxis: {
title: {
text: 'expertise',
align: 'high'
},
labels: {
overflow: 'justify',
}
},
tooltip: {
valueSuffix: ' millions'
},
plotOptions: {
bar: {
dataLabels: {
enabled: true,
formatter: function() {
if (this.y == 0) {
return 'low'
} else if (this.y == 1) {
return 'medium'
} else {
console.log(this.y);
return 'high'
}
}
}
}
},
series: [{
data: [0, 2, 0, 1, 1]
}]
});
});
In my opinion, it is kinda unlikely for a line graph to have a y-axis category, since it speaks more of amount or value. In your case, "low, medium, and high" speaks of ranges, with which a certain value can be assigned to any of it.
Thus, Highcharts accepts series data in numeric form. But you can work around it by setting ['low', 'medium', 'high'] in the category attribute of yAxis, then setting series data as an array of number corresponding to the index of the category, i.e. [0,1,1,2,...] and tweaking the tooltip to display the category instead of the y value using formatter attribute.
Here is the code:
$(function() {
yCategories = ['low', 'medium', 'high'];
$('#container').highcharts({
title: {
text: 'Chart with category axes'
},
xAxis: {
categories: ['Heroku', 'Ruby','Lisp','Javascript','Python','PHP']
},
yAxis: {
categories: yCategories
},
tooltip: {
formatter: function() {
return this.point.category + ': ' + yCategories[this.y];
}
},
series: [{
data: [0, 1, 2, 2, 1]
}]
});
});
Here is a working example : JSFiddle
I have a chart made with highcharts.js.
The graph works the way I wanted but then if I try to set the categories (programmatically or not) somehitng strange happen, the tick become smaller and move to the centre leaving a big space on the sides of the graph.
BEFORE:
AFTER:
$(function () {
$('#container').highcharts({
chart: {
renderTo: 'graph',
type: 'area',
},
xAxis: {
title: {
text: ''
},
startOnTick: false,
endOnTick: false,
tickmarkPlacement: 'on',
},
series: [{
data: [['aa',29.9], ['bb',71.5], ['cc',106.4],['dd', 129.2 ]]
}],
});
// the button handler
$('#button').click(function() {
var chart = $('#container').highcharts();
chart.xAxis[0].setCategories(['bb', 'bb', 'cc', 'dd']);
});
});
See this JsFiddle:
http://jsfiddle.net/MaurizioPiccini/d746v/3/
It all happens when you press the button (the categories can be set in the xAxis as well giving the same problem).
Is it possible to have named categories to start and end at the graph extremes?
You can use workaround which, updatse your axis with defined min/max value.
chart.xAxis[0].update({
categories: ['bb', 'bb', 'cc', 'dd'],
min: 0.5,
max: 2.5
});
http://jsfiddle.net/d746v/6/
I found a solution that is also reporteed here:
http://forum.highcharts.com/highcharts-usage/highchart-ticks-start-point-change-when-categories-names-are-t29052/
The solution is not to use categorized xAxis but linear or datetime with label formatter like this:
xAxis: {
labels: {
formatter: function(){
return categories[this.value];
}
}
}
where categories is an array of categories.
It looks like that is the only way to make the chart behave this way.
I am using Highcharts to plot JSON Data. The dates are in the string format.
JSON Data:
[{"BRENT_SPOT":70.88,"TRADE_DATE":"31-JUL-2009"},{"BRENT_SPOT":73.28,"TRADE_DATE":"03-AUG-2009"},{"BRENT_SPOT":74.31,"TRADE_DATE":"04-AUG-2009"},{"BRENT_SPOT":74.96,"TRADE_DATE":"05-AUG-2009"},{"BRENT_SPOT":74.4,"TRADE_DATE":"06-AUG-2009"},{"BRENT_SPOT":72.84,"TRADE_DATE":"07-AUG-2009"},{"BRENT_SPOT":73.29,"TRADE_DATE":"10-AUG-2009"},{"BRENT_SPOT":72.04,"TRADE_DATE":"11-AUG-2009"}]
HighCharts / JQuery Code :
<script>
var chart;
$(function() {
var options = {
chart: {
renderTo: 'container',
zoomType: 'xy',
type: 'line'
},
title: {
text: 'Brent Daily Price Curve (FPC as at <cfoutput>#f_date#</cfoutput>)'
},
xAxis: {
labels: {
rotation: 45,
step: 3
},
type: 'category'
},
yAxis: {
lineWidth: 1,
title: {
text: '$ USD'
},
min: 0
},
series: []
};
$.getJSON("brentpricehc_test.cfm?f_date=<cfoutput>#f_date#</cfoutput>", {}, function(jsonResult) {
var BrentUSDPrice = {
name: "Brent Spot (USD)",
type: "line",
data: [],
marker: {
radius: 2
}
};
$(jsonResult).each(function(index) {
BrentUSDPrice.data.push([this.TRADE_DATE, this.BRENT_SPOT]);
});
/*options.series[0] = BrentUSDPrice;*/
options.series.push(BrentUSDPrice);
chart = new Highcharts.Chart(options);
});
});
</script>
I'm unable to plot any values wrt each of the date strings. I tried converting the JSON dates to datetime instead but still the same issue.
Few More details (for testing purposes):
Modifying to the below line plots the graph with the correct "brent_spot" values. This means that the issue lies with the way the "trade_dates" are 'not' plotting.
BrentUSDPrice.data.push([index, this.BRENT_SPOT]);
Edit 2 : (Using Datetime type to make the code work)
JSON Data (New): Returned as TO_CHAR(TRADE_DATE, 'YYYY/MM/DD')
[{"BRENT_SPOT":70.88,"TRADE_DATE":"2009\/07\/31"},{"BRENT_SPOT":73.28,"TRADE_DATE":"2009\/08\/03"},{"BRENT_SPOT":74.31,"TRADE_DATE":"2009\/08\/04"},{"BRENT_SPOT":74.96,"TRADE_DATE":"2009\/08\/05"},{"BRENT_SPOT":74.4,"TRADE_DATE":"2009\/08\/06"},{"BRENT_SPOT":72.84,"TRADE_DATE":"2009\/08\/07"},{"BRENT_SPOT":73.29,"TRADE_DATE":"2009\/08\/10"},{"BRENT_SPOT":72.04,"TRADE_DATE":"2009\/08\/11"}]
$(jsonResult).each(function(index) {
BrentUSDPrice.data.push([new Date(this.TRADE_DATE), this.BRENT_SPOT]);
});
Server side language used : Coldfusion
Database : Oracle
Am I doing something silly somewhere?
I have just tried your code, and it works perfectly fine, see: http://jsfiddle.net/3bQne/1026/
I guess, you need to update to Highcharts 3.0.10 to get this working.
If you are using type: 'category' then you need to assign name: to the data points. See the categories entry at http://api.highcharts.com/highcharts#xAxis
If categories are present for the xAxis, names are used instead of numbers for that axis. Since Highcharts 3.0, categories can also be extracted by giving each point a name and setting axis type to "category".
So the question is whether you are using Highcharts 3.0 and if you do then it needs to look something like this:
data: [{
name: 'Point 1',
color: '#00FF00',
y: 0
}, {
name: 'Point 2',
color: '#FF00FF',
y: 5
}]
see: http://api.highcharts.com/highcharts#series.data
I'm using highcharts in my web application and I was wondering if there's any way to rename a series after the chart hast been created??
Thanks in advance!!
actually, there's a way now. In highchars 3.0 series added a new api, called update:
chart.series[0].update({name:"name u want to change"}, false);
chart.redraw();
it will not only update the series name below the chart, but the name in tooltip as well.
Cheers!
This seems to work :
chart.series[1].name="Renamed";
chart.redraw();
There is no method for doing this in the API. You could remove the series and add it again with another name, but that will make the animations run a second time and I think it will be colored with a new color as well.
It is not required to Redraw chart again
We can include it along with the series option in the Chart declaration as below:
var chart = new Highcharts.Chart({
chart: {
renderTo: 'high_container'
},title: {
text: 'IO Signal Data'
},subtitle: {
text: 'Source: GPS Modem'
},
yAxis: {
title: {
text: 'Value'
}
},
legend: {
layout: 'vertical',
align: 'right',
verticalAlign: 'middle'
},
xAxis: {
type: 'datetime',
labels: {
enabled: true,
formatter: function () { return ddd[this.value][0]; }, //<=== the value to plot chart
}
},
series: [{
data: ddd,
name: SeriesName
}]
});
You can use the following to change the series name:
$(chart.series[0].legendItem.element).children('tspan').text('newLabelName');