If I have a Highcharts bar or column chart that has a data series with an array of all zeroes, the y axis tick label displays in the center of the y axis, along with an extra y axis. I've experimented with the tick placement and min values but these dont seem to work in the case of this peculiar set of data. see http://jsfiddle.net/davidpmcintyre/mepd17tn/
Here's the highcharts code snippet:
$(function () {
$('#container').highcharts({
chart: {
type: 'bar'
},
xAxis: {
categories: ['Jan', 'Feb', 'Mar', 'Apr' ]
},
series: [{
data: [0, 0, 0, 0]
}]
});
});
Assuming (given requirements of your chart):
All data will be positive
You always want to start from 0 on the y-axis
The following code will allow you to left-align your y-axis, and also specify how much of the y-axis you want to show in minimal cases (JSFiddle):
yAxis: {
min: 0,
minRange: 1
}
This will still allow you to have larger ranges on the y-axis as it only kicks in when the value range is less than one. This in turn means you do not have to check your data before setting any values.
Related
I have here https://jsfiddle.net/ezhp5a4j/6/ an area and a stacked bar chart But I need to achieve something like : adding another series:column behind this actual but not stacked, starting from jan. 2010 and end dec. 2010 with a certain position in y axis, my need is quiet simple, but I don't know how achieve, I think I need another X axis ?
Actually I have:
xAxis: {
type: 'datetime',
ordinal: false
},
Maybe I need add array to this or so?
You could do this with a second axis, but it's not necessary.
If you add your new data series, with some additional parameters to control the size and spacing, it can all use the same x axis.
Example:
{
"name": 'Summary',
type: 'column',
grouping: false, <-- make sure they don't group with the other series
stacking: false, <-- make sure they don't stack on the other series
color: 'rgba(0,0,0,0.5)',
pointRange: 86400000 * 365, , <-- 1 year; set to desired time frame
pointInterval: 86400000 * 365, <-- 1 year; set to desired time frame
pointPadding: 0.01,
groupPadding: 0,
data: [10000, 15000, 9000, 13000]
}
Updated fiddle:
https://jsfiddle.net/jlbriggs/ezhp5a4j/15/
Output:
EDIT for comment:
To add a second axis, you change the xAxis object to an array of objects, like this:
xAxis: [{
type: 'datetime',
ordinal: false
},{
linkedTo: 0,
type: 'datetime',
ordinal: false
}]
If they are going to have different scales, I am not sure that it makes any sense to plot them together, but in that case, you would remove the linkedTo: 0
Then, in your data, you need to specify which data series are plotted on the second axis, by adding xAxis: 1 to the series options (you don't need to specify xAxis: 0 for the other series, as 0 is the default.
Since you have specified a pointStart in your plotOptions, if the series plotted on the second axis will have a different scale, you will need to specify a separate pointStart in that series options.
Update example fiddle:
https://jsfiddle.net/jlbriggs/ezhp5a4j/16/
i am quite new to Highcharts and i am a little bit stucked.
I am trying to add a average line (spline) to each bar (column) in a combination chart. The average line shall not be displayed in the middle, it sall be displayed over the related bar, as i tried to show in this picture.
picture to explain
Thanks a lot!
You can add new xAxis that you can use to add your spline series in right places.
xAxis: [{
min: 0,
max: 3,
categories: ['Jan', 'Feb', 'Mar', 'Apr'],
tickPixelInterval: 0
}, {
categories: true,
min: 0,
max: 19,
visible: false
}],
In this case I am making the second xAxis much more dense. Here you can see how both of my axes looks here:
http://jsfiddle.net/feqq1eog/1/
To hide second axis you can use visible: false parameter.
Here you can find an example how it can work:
http://jsfiddle.net/feqq1eog/4/
I would like to have specific point intervals in high chart.
I have a passrate chart where in the Y axis shows the percentage passrate. But I would like be able to alter the y axis plot points.
Please refer to this fiddle.
http://jsfiddle.net/Mn6sB/2/
Here is a small code piece - how ever the range is not 10 intervals.
yAxis: {
title: {
text: 'PassCount'
},
min: 0,
max:100,
minTickInterval:10
},
minTickInterval: NumberSince 2.3.0
The minimum tick interval allowed in axis values. For example on zooming in on an axis with daily data, this can be used to prevent the axis from showing hours.
If you want the y axis tick interval changes when you zoom in, you need to enable the zooming first.
chart: {
renderTo: 'chartContainer',
type: 'spline',
zoomType: 'y'
}
Or, if you want to fix the tick interval, what you need is not minTickInterval but tickInterval
So your small code piece should be:
yAxis: {
min: 0,
max:100,
tickInterval:10
}
Is it possible to invert the y-axis, but not the data? I have a ranking which should start with 1 at the top, not at the bottom, but the columns should stay just normal.
Thanks for any hints!
You can use reversed yAxis, and column series, where each point will have y and low values, where low values are the same as the lowest number. See: http://jsfiddle.net/JVNjs/303/
var max = 10;
var chart = new Highcharts.Chart({
chart: {
renderTo: 'container'
},
title: {
text: 'Chart Title'
},
credits: {
enabled: false
},
yAxis: {
min: 0,
max: max,
tickInterval: 2,
reversed: true
},
series: [{
type: 'column',
data: [{
y: 1,
low: max
}, {
y: 3,
low: max
}, {
y: 6,
low: max
}]
}]
There is no good easy direct way to do it (afaik).
There are a variety of approaches you could take, however.
This example uses a reversed axis and stacked columns:
http://jsfiddle.net/jlbriggs/JVNjs/301/
stacking:'normal',
It relies on adding a second series that is the difference between your value and the max, which means you must also specify a y axis max.
I left the second series a light grey so you can see them, but you can set their opacity to 0 so that they are invisible.
Other options might include doing some calculations on the y axis label formatter to display the axis labels as you want without having to touch the data.
Highcharts provides an option for this called reversed setting it true will do the work for you.
http://api.highcharts.com/highcharts#yAxis.reversed
reversed: true
here is the jsfiddle
http://jsfiddle.net/bmbhD/
I'm relatively new to HighCharts, and I would like to have two Y-axes where the data is always expressed in terms of the left-hand (primary) Y-Axis, but there is a constant function whereby you can translate the data into the terms on the right-hand (secondary) Y-Axes.
Take, for example, http://jsfiddle.net/M2EVb/
It's a constant well-known function to translate from Fahrenheit to Celsius. Even though I have specified the Primary Y-Axis as ranging from 32 to 212 with a tick interval of 18, and the Secondary Y-Axis as ranging from 0 to 100 with a tick interval of 10, the two axes don't line up properly; likely due to the "cels" data. But the point is that I would like to have the "cels" data just be another set of Fahrenheit temps, and have the right-hand Y-Axis values be the proper Celsius "translations" of their respective Fahrenheit values, and always show up.
Use the label's formatter function in the yAxis configuration to convert your yAxis ticks from F to C like this:
yAxis: [{
title: {
text: 'Temperature (C)'
},
labels: {
formatter: function() {
return YourConversionFunction(this.value) +' C';
}
}
}]
Make sure you are defining your Series using the same dataset (the F data):
series: [{
type: 'area',
name: 'Temp (F)',
data: Far_TempData,
yAxis: 0,
xAxis: 0
}, {
type: 'area',
name: 'Temp (C)',
data: Far_TempData,
yAxis: 1,
xAxis: 0,
lineWidth:0,
fillOpacity: 0.01,
visible:true
}]