i have a highchart with 4 series. I also only set the min value for each y-axis to 0 cause there arent any negative values possible. now highchart is calculating the max value by itself what is nice BUT i need this for each series itself. The reason is that i have 2 series with very high values from the range up to 5000 and the other two values are relativ small from 0 to 50.
The max value highcharts calculates is used for all four series - so the chart looks like this:
As you can see you can only see the two high value series - the other two arent really visible at the bottom of the chart.
When i disable the two series with the high values the chart looks nice for the other two values:
is there any flag i can use so highchart will calculate the max value / scale per series? Or have i really calculate it by myself - also on zoom and so on.
I found this: https://github.com/highcharts/highcharts/issues/4248
But i thought thats some basic functionality with is needed very often so there has to be something..
greetings
Maybe it would be better to use logarithmic axis type? Your chart would have only one axis adjusted to much difference between the values of series points. When it comes to differences between units of measurement, always you can set the different tooltip.pointFormat definition for specific series.
Highcharts.chart('container', {
title: {
text: 'Logarithmic axis demo'
},
yAxis: {
type: 'logarithmic',
},
series: [{
data: [1, 20, 30, 22, 16, 32, 45, 24, 11, 2],
pointStart: 1,
tooltip: {
pointFormat: '<b>{point.y} km/h</b>'
}
}, {
data: [4500, 3450, 4242, 2348, 5216, 3212, 4564, 3128, 5256, 4512],
pointStart: 1,
tooltip: {
pointFormat: '<b>{point.y} kW/h</b>'
}
}]
});
Live example: https://jsfiddle.net/bfnj4mp8/
API Reference:
https://api.highcharts.com/highcharts/yAxis.type
https://api.highcharts.com/highcharts/series.line.tooltip.pointFormat
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/
Is it possible to use minPadding or maxPadding on a line chart when having set min and max values?
I have a x axis that looks like this:
xAxis: {
type: 'datetime',
dateTimeLabelFormats: { // don't display the dummy year
month: '%e. %b',
year: '%b'
},
title: {
text: 'Date'
},
min: Date.UTC(1970, 9, 21),
max: Date.UTC(1971, 5, 3),
minPadding: 0.2
},
minPadding dosen't seem to work as expected. My goal is to try to align date ticks on a line chart and a column chart.
Example here:
http://jsfiddle.net/gtx21hhx/1/
It's always tricky getting lines and columns on two different charts to line up.
There are two different approaches I mighty use to solve this:
1) Add a dummy column series to the line chart, with no data. This will force the alignment.
2) Instead of two charts, make this one chart, with two vertically stacked y axes, then the alignment will default to the column alignment.
Also, make sure you have the same leftMargin if you are going to stick with two charts - of your x axes don't start at the same point, they won't ever be aligned.
Here's an example with a dummy series:
http://jsfiddle.net/jlbriggs/gtx21hhx/4/
And here's an example of how you can set up multiple y axes on the same chart:
http://jsfiddle.net/jlbriggs/py5cznd7/2/
Two Part Q:
Why is high charts not correctly aligning and displaying the following date on the x axis?
How can I align the date on the x axis with the points in each series?
I have tried adjusting to tickinterval to various values but to no avail on either issue.
tickPixelInterval: 200
Fiddle->http://jsfiddle.net/EwpWh/
Use datetime axis instead of linear, see: http://jsfiddle.net/Fusher/EwpWh/5/
xAxis: {
type: 'datetime',
labels: {
formatter: function () {
return Highcharts.dateFormat('%m/%d', this.value);
}
},
tickPixelInterval: 200
},
However if you want to have ticks exactly in the same place as points are, you need to use one of:
tickPositions: http://api.highcharts.com/highstock#xAxis.tickPositions
tickPositioner: http://api.highcharts.com/highstock#xAxis.tickPositioner
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 outputting a series of highcharts on a page. In some instances, all data for the specified time period may come back with 0 values.
In such a case, the chart looks like this: http://jsfiddle.net/charliegriefer/KM2Jx/1/
There is only 1 y-Axis label, 0, and it's in the middle of the chart.
I'd like to force that 0 value for the y-Axis to be at the bottom of the chart, which would be consistent with other charts on the page that do have data.
Have tried various yAxis properties, such as "min: 0", "minPadding: 0", "maxPadding: 0", "startOnTick: true".
Seems it should be pretty straightforward, but I'm at a loss :(
Relevant yAxis code:
yAxis: {
min: 0,
minPadding: 0,
startOnTick: true,
title: {
text: ""
}
},
I've found another (and very simple) solution:
You can set y-axis minRange property:
yAxis: {
...
minRange : 0.1
}
This makes Highcharts render yAxis min and max values when all data is 0.
UPDATE:
Highcharts 4.1.9 fix also needs:
plotOptions: {
line: {
softThreshold: false
}
}
updated js fiddle
Only way I could get it to show it "correctly" was by also providing an yAxis max value. I think this is a HighCharts issue when you provide no data elements with a y-value. It draws the best chart it thinks it can.
I had also posted this to the HighCharts forum, where I got a response that seems to work. Unfortunately, it will involve me doing some pre-processing of the data prior to rendering the charts in order to check for all "0" data values... but it'll work. Just wish there was something more "built-in" to HighCharts.
So after summing up the "y" values, if I get 0, the y-axis properties should look like this:
yAxis: {
minPadding: 0,
maxPadding: 0,
min: 0,
max:1,
showLastLabel:false,
tickInterval:1,
title: {
text: ""
}
}
See: http://jsfiddle.net/KM2Jx/2/
The keys seem to be the "max" and "showLastLabel" properties.
Here is a fix I came up with that doesn't require any preprocessing of the data and just let highcharts do it, like it used to before the update. http://jsfiddle.net/QEK3x/
if(chart.yAxis[0].dataMax === 0)
{
chart.yAxis[0].setExtremes(0, 5);
}
You only need to check the first series axis, as if the first one is not 0 then the problem won't occur. I might submit a pull request for this to high-charts, though I kinda feel like they intended for this functionality for some reason.
Since Highcharts 5.0.1, you can also use softMax.
softMax: Number
A soft maximum for the axis. If the series data maximum is greater than this, the axis will stay at this maximum, but if the series data maximum is higher, the axis will flex to show all data.
yAxis: {
min: 0,
softMax: 100,
...
}
Here is an example with a column chart : http://jsfiddle.net/84LLsepj/
Note that currently, in Highcharts 5.0.7, it doesn't seem to be working for all types of charts. As you can see in this other jsfiddle, it doesn't work with line chart.
Just add "min" option
yAxis: {
min: 0
}
For Highcharts 5.x.x, you should be able to just specify:
yAxis: {
softMin: 0,
softMax: 1,
};
This won't work for line chart, which requires that you also set minRange in the same config object as above. Experiment with different values, since defining for example minRange: 6, created a range on yAxis between 0 and 4.
minRange : 1 or whatever you feel so to be displayed in fractions of
softMax : 100 or whatever you feel so
yAxis: {
minRange : 1,
softMax: 100
}