I am a bit confused by the documentation regarding the notation for point values when it comes to 3+ value charts such as HeatMap and BoxPlot.
I see that point values can be supplied as n length arrays:
data: [
[760, 801, 848, 895, 965],
[733, 853, 939, 980, 1080]...
]
And that they can be config objects with additional/custom properties:
data: [{
name: 'Point 1',
color: '#00FF00',
x: 1,
y: 3
}, {
name: 'Point 2',
color: '#FF00FF',
x: 2,
y: 5
}]
But how does one use the config object notation for HeatMap/BoxPlot when the only documented value properties seem to be 'x' and 'y'?
Is there a supported property of the config object that will be interpreted as the n length array? Something like this?
data: [{
name: 'Point 1',
color: '#00FF00',
values: [1,2,3]
}, {
name: 'Point 2',
color: '#FF00FF',
values: [4,5,6]
}]
It depends on the type of chart.
For HeatMap (reference):
A heat map has an X and Y axis like any cartesian series. The point definitions however, take three values, x, y as well as value, which serves as the value for color coding the point. These values can also be given as an array of three numbers.
In other words you could do { x: 0, y: 1, value: 10 } or [0,1,10].
For BoxPlot (reference):
Each point in a box plot has five values: low, q1, median, q3 and high. Highcharts recognizes three ways of defining a point:
Object literal. The X value is optional.
{ x: Date.UTC(2013, 1, 7), low: 0, q1: 1, median: 2, q3: 3, high: 4 }
Array of 5 values. The X value is inferred.
[0, 1, 2, 3, 4]
Array of 6 values. The X value is the first position.
[Date.UTC(2013, 1, 7), 0, 1, 2, 3, 4]
Related
I am using following code to insert points in the scatter chart:
series: [
{
name: 'Machine 1',color: '#0000FF',marker: {radius: 3, symbol: 'circle'},
data: [
{x: Date.UTC(2020,10,07,00,00,00), y: 0, prod_type: 'Production', number_of_cycles: '10',},
{x: Date.UTC(2020,10,07,00,01,00), y: 0, prod_type: 'Production', number_of_cycles: '11',}
]
},
{
name: 'Machine 2',color: '#00FF00',marker: {radius: 3, symbol: 'circle'},
data: [
{x: Date.UTC(2020,10,07,00,00,00), y: 1, prod_type: 'Setup', number_of_cycles: '1',},
{x: Date.UTC(2020,10,07,00,01,00), y: 1, prod_type: 'Setup', number_of_cycles: '2',}
]
}
]
This works but when I put a high number of points (more than 1,000) into one section data[], the chart shows nothing.
Thanks for your help
Jan
That is caused by the turboThreshold option:
turboThreshold: number
When a series contains a data array that is longer than this, only one
dimensional arrays of numbers, or two dimensional arrays with x and y
values are allowed. Also, only the first point is tested, and the rest
are assumed to be the same format. This saves expensive data checking
and indexing in long series. Set it to 0 disable.
Note: In boost mode turbo threshold is forced. Only array of numbers
or two dimensional arrays are allowed. Defaults to 1000.
You can map your data to a simpler format, like: [x, y] or change the value of turbo threshold.
API Reference: https://api.highcharts.com/highcharts/series.scatter.turboThreshold
Is it possible to have both colorAxis and series in the legend? http://jsfiddle.net/6k17dojn/ i see i can only show one at a time when I toggle this setting
colorAxis: {
showInLegend: true,
}
Currently to show a basic legend with colorAxis, you need to add some code to Highcharts core. This plugin below allows you to add colorAxis to a legend if showInLegend property is set to false:
(function(H) {
H.addEvent(H.Legend, 'afterGetAllItems', function(e) {
var colorAxisItems = [],
colorAxis = this.chart.colorAxis[0],
i;
if (colorAxis && colorAxis.options) {
if (colorAxis.options.dataClasses) {
colorAxisItems = colorAxis.getDataClassLegendSymbols();
} else {
colorAxisItems.push(colorAxis);
}
}
i = colorAxisItems.length;
while (i--) {
e.allItems.unshift(colorAxisItems[i]);
}
});
}(Highcharts))
Live demo: http://jsfiddle.net/BlackLabel/hs1zeruy/
API Reference: https://api.highcharts.com/highcharts/colorAxis.showInLegend
Docs: https://www.highcharts.com/docs/extending-highcharts
It's possible, but not with the data you currently work with. A heatmap's data is a set of coordinates, but here, your two series overlap.
Your raw data is :
[
[0,0,0.2, 0.4],
[0,1,0.1, 0.5],
[0,2,0.4, 0.9],
[0,3,0.7, 0.1],
[0,4,0.3, 0.6]
]
From there, you're mapping two series: 2018, and 2019 via the seriesMapping: [{x: 0, y: 1, value: 2}, {x: 0, y: 1, value: 3}] option.
You thus end up with the following two series:
2018 2019 2019 should be
[ [ [
[0, 0, 0.2], [0, 0, 0.4], [1, 0, 0.4],
[0, 1, 0.1], [0, 1, 0.5], [1, 1, 0.5],
[0, 2, 0.4], [0, 2, 0.9], [1, 2, 0.9],
[0, 3, 0.7], [0, 3, 0.1], [1, 3, 0.1],
[0, 4, 0.3] [0, 4, 0.6] [1, 4, 0.6]
] ] ]
Notice that in both cases, the coordinates are the same, but for 2019, the x value should be 1. Since you have 0 as x coordinate for both series, they overlap.
To fix you issue, you need to change your data (or pre-process it, whatever is easier). For example:
var data = '[[0,0,0.2, 0.4],[0,1,0.1, 0.5],[0,2,0.4, 0.9],[0,3,0.7, 0.1],[0,4,0.3, 0.6]]';
var rows = JSON.parse(data);
rows = $.map(rows, function(arr){
return [[
arr[0], arr[1], arr[2], // 2018
arr[0] + 1, arr[1], arr[3], // 2019
]];
});
// and the seriesMapping changes to
data: {
rows: rows,
firstRowAsNames: false,
seriesMapping: [{x: 0, y: 1, value: 2}, {x: 3, y: 4, value: 5}]
},
You can see it in action here: http://jsfiddle.net/Metoule/qgd2ca6p/6/
Can we fill colors like this in boxplot chart of Highcharts?
Please refer the image below:
You can calculate point color based on some algorithm, for example:
chart: {
type: 'boxplot',
events: {
load: function(){
var points = this.series[0].points,
color,
length = points.length;
Highcharts.each(points, function(point, i){
color = 'rgb(255,' + Math.floor(i * 255 / length) + ', 0)'
point.update({ fillColor: color }, false)
});
this.redraw();
}
}
}
Live demo: https://jsfiddle.net/BlackLabel/5k8wfrgc/
Yes, its possible to control the fillColor for a boxplot.
This is a demonstration to show you:
http://jsfiddle.net/mqunbjrs/
If you take a look at the highcharts API you will see that instead of using an array with the 6 plot values, you can use an object with named values: https://api.highcharts.com/highcharts/series.boxplot.data
instead of this:
data: [
[0, 3, 0, 10, 3, 5],
[1, 7, 8, 7, 2, 9],
[2, 6, 9, 5, 1, 3]
]
You would use this:
data: [{
x: 1,
low: 4,
q1: 9,
median: 9,
q3: 1,
high: 10,
name: "Point2",
fillColor: "#00FF00"
}, {
x: 2,
low: 5,
q1: 7,
median: 3,
q3: 6,
high: 2,
name: "Point1",
fillColor: "#FF00FF"
}]
Highcharts does a great job figuring out appropriate tick intervals.
However, I have a "duration" series (in ms), which I format e.g. like "3y 6M" or "1d 3h" or "3h 30min" for display. Because Highcharts is optimizing the tick intervals for the ms value (e.g. 10,000,000ms), I end up with awkward values such as [ 2h 46min 40s, 5h 33min 20s, 8h 20min ] rather than [ 3h, 6h, 9h ].
Can I get Highcharts to prefer multiples of certain values (e.g. 1000, 60 * 1000, 60 * 60 * 1000 etc)? I'd rather not have to calculate the exact tick interval myself (depends on chart size etc).
I think you should consider using datetime axis for yAxis. For example: http://jsfiddle.net/jRGvs/
yAxis: {
type: 'datetime'
},
series: [{
type: 'column',
name: 'Column',
data: [Date.UTC(1970, 0, 1, 2, 30),
Date.UTC(1970, 0, 1, 1, 45),
Date.UTC(1970, 0, 1, 4, 10),
Date.UTC(1970, 0, 1, 3, 30)]
}]
you can go with label > formatter for yAxis,
here you can write a routine which will handle the text/value to be displayed beside the grid line. but the thing is you cannot override the tick interval from here.
In the below demo link, if user clicks on series or legend [Jane or John] the values or graph dynamic sets the y axis values based on the series input.
Is there a way to set a static or equal set of values on either side of threshold? [7.5,5,2.5,0-2.5,-5,-7.5]??? which remains constant?
Example from highcharts demo section
series: [{
name: 'John',
data: [5, 3, 4, 7, 2]
}, {
name: 'Jane',
data: [2, -2, -3, 2, 1]
}, {
name: 'Joe',
data: [3, 4, 4, -2, 5]
}]
You need to set min/max values on the Y-axis, like bellow
yAxis: {
min: -7.5,
max: 7.5
}
Or you can do let highcharts set the extremes, but set manually after
var chart = $('#container').highcharts({
...
}).highcharts();
var extremes = chart.yAxis[0].getExtremes();
chart.yAxis[0].setExtremes(extremes.min, extremes.max);