I need to create a bubble chart style chart which has two axis, both which are words rather than text.
In my example I want:
axis x to be colours, e.g. red, blue, Yellow
axis y to be cars, e.g. small car, medium car, big car
from this I want to plot how many of each car was ordered, e.g. if 2 small red cars were ordered and one big blue car was ordered there would be a bubble on small red which is twice the size of the bubble at big blue.
I have done a bit with charts.js, but none of my examples cover how to use text instead of numbers.
Any help would be greatly appreciated with this, I have looked through the documentation here.. enter link description here, but have not been able to get anything to work.
Thanks in advance.
I've recently had the same requirement for a dataset and utilised the callback function for each axis in the scale option. I populated the list of values for the labels into an array and then used the index of the point to perform a lookup to rename the tick label.
var colours = ["Red", "Blue", "Green", "Yellow"];
var carSizes = ["Small", "Medium", "Large"];
// Small Red = 10
// Small Green = 14
// Medium Yellow = 23
var dataPoints = [{x: 0, y: 0, r: 10}, {x: 2, y: 0, r: 14}, {x: 3, y: 1, r: 23}
var myBubbleChart = new Chart(bubbleCtx, {
type: 'bubble',
data: dataPoints,
options: {
title: {
display: true,
text: "Car Orders"
},
scales: {
yAxes: [{
ticks: {
stepSize: 1,
callback: function (value, index, values) {
if (index < carSizes.length) {
return carSizes[carSizes.length - (1 + index)]; //this is to reverse the ordering
}
}
},
position: 'left'
}],
xAxes: [{
ticks: {
stepSize: 1,
callback: function (value, index, values) {
if (index < colours.length) {
return colours[index];
}
}
},
position: 'bottom'
}]
}
}
});
After much trial and error, I found it necessary to set the step size to 1 otherwise the chart would get skewed with data appearing outside the gridlines.
If you are not setting the data dynamically and know the minimum and maximum values for each axis, you can set the min and max attributes for the ticks and specify the axis type as 'category'.
yAxes: [{
type: 'category',
ticks: {
stepSize: 1,
min: 'Small',
max: 'Large'
},
position: 'left'
}]
You can use line type chart with bordercolour radius 0. it will act as line chart and avoid line. It will appeared like bubble chart.
Related
Here I am getting gradient color at top of the chart area by reversing y-Axis. check the image below .
yAxis: {
reversed: true,
showFirstLabel: false,
showLastLabel: true
}
I don't want to reverse the y-Axis, if i am reversing the y-Axis my chart also reversed. I want the gradient color which is in top of the chart line without using this Reversed Y-axis. Suggest me to if any other options in highcharts.
Could any one help me to solve this.
I am working live random data. In this case only the area traveled by the data should get the gradient color , empty space other than the data in chat shouldn't get gradient color.
As per #DaMaxContent answer , the output will act like below image.
I don't want that gradient which filled in other area of the chart data. Could you please help me to resolve this.
The break down:
You can use gridZindex and backgroundColor/fillColor properties to produce the desired effect. Only issue is that the grid has to be displayed over graph.
The solution:
DEMO
The code behind it:
chart: {
type: 'area',
backgroundColor: { //<<--that is what you are using as fill color
linearGradient : {
x1: 0,
y1: 1,
x2: 0,
y2: 0
},
stops : [
[0, Highcharts.getOptions().colors[0]],
[1, Highcharts.Color(Highcharts.getOptions().colors[0]).setOpacity(0).get('rgba')]
]
}
},
rangeSelector: {
selected: 1
},
title: {
text: 'AAPL Stock Price'
},
yAxis: {
reversed: false,
showFirstLabel: false,
showLastLabel: true,
gridZIndex: 1000 //<<--grid Z index is used to display grid lines over the graph instead of under it
},
series: [{
name: 'AAPL Stock Price',
data: data,
threshold: null,
fillColor : "#fff", //<<--fill color under the line to simulate effect
zIndex: 1000,
tooltip: {
valueDecimals: 2
}
}]
If you wish to get rid of the marginal color areas, you can get rid off the graphs margin with chart: { [... ,] margin: 0 [, ...] } and then use the container's padding as the graph margin.
More info:
highcharts styling guides:
http://www.highcharts.com/docs/chart-design-and-style/design-and-style
grid Z index:
http://www.java2s.com/Tutorials/highcharts/Example/Axis/Set_grid_line_z_index.htm
background color:
Changing HighCharts background color?
(alternative to bg color) plot background color (bg color of *main plot only):
http://api.highcharts.com/highcharts#chart.plotBackgroundColor
*range selector areas will not be affected
To meet the various criteria you have asked for, I would accomplish this by creating a dummy series to create the gradient effect.
Example Result:
In this scenario, you will need to pre-process your data, and you will need to assign a max value for the y axis explicitly.
Example Code:
var max = 0;
var data1 = [...your data array...];
var data2 = [];
$.each(data1, function(i,point) {
max = point > max ? point : max;
});
max = Math.ceil(max * 1.1);
$.each(data1, function(i,point) {
data2.push((max - point));
});
You will then need to assign that max value as your yAxis max proeprty, and you may need to either set endOnTick: false, or otherwise account for the max resolving with your tickInterval:
yAxis: {
max:max,
endOnTick:false
}
Then for your dummy series, define the background color gradient.
We'll also set the showInLegend and enableMouseTracking properties to false so that it doesn't show in the legend or tooltip:
{
data: data2,
showInLegend:false,
enableMouseTracking:false,
fillColor : {
linearGradient : {
x1: 0,
y1: 1,
x2: 0,
y2: 0
},
stops : [
[0, Highcharts.getOptions().colors[0]],
[1, Highcharts.Color(Highcharts.getOptions().colors[0]).setOpacity(0).get('rgba')]
]
}
Fiddle Example:
http://jsfiddle.net/jlbriggs/mcp3trmk/
This ensures that the gradient will always match the data, as requested.
As you can see from this js fiddle you have to add this:
series: [{
name: 'AAPL Stock Price',
data: data,
threshold: null,
fillColor : {
linearGradient : {
x1: 0,
y1: 1,
x2: 0,
y2: 0
},
stops : [
[0, Highcharts.getOptions().colors[0]],
[1, Highcharts.Color(Highcharts.getOptions().colors[0]).setOpacity(0).get('rgba')]
]
},
tooltip: {
valueDecimals: 2
}
}]
See the documentation for further information
I am using a line chart. I feed the data the following:
var scheduled = [[51,1700],[52, 1750],[1,1600],[2,1675]];
var actual = [[51,1320],[52, 1550],[1,1575],[2,1600]];
In the above the first number of each set is the week of the year and I am trying to show the last 4 months of data.
However, when the chart is drawn Flot charts re-sorts the data by the first value (lowest to highest) which creates all kinds of issues. Instead of 4 columns in the series there are now 52, and the lines are quite out of whack.
I don't see anything in the documentation that says this is supposed to happen, nor do I see anything that says I can prevent it. However, for the data to be meaningful, the data must not be re-ordered.
Is there a setting I'm unaware of that can stop this behavior?
Edit : Adding plot code
var plot = $.plot('#scheduled-actual-flot-line', [
{
label: 'Scheduled Hours',
data: scheduled,
lines: { show: true, lineWidth: 2, fill: true, fillColor: { colors: [{ opacity: 0.5 }, { opacity: 0.5 }] } },
points: { show: true, radius: 4 }
},
{
label: 'Actual Hours',
data: actual,
lines: { show: true, lineWidth: 2, fill: true, fillColor: { colors: [{ opacity: 0.5 }, { opacity: 0.5 }] } },
points: { show: true, radius: 4 }
}],
{
series: {
lines: { show: true },
points: { show: true },
shadowSize: 0 // Drawing is faster without shadows
},
colors: ['#afd2f0', '#177bbb'],
legend: {
show: true,
position: 'nw',
margin: [15, 0]
},
grid: {
borderWidth: 0,
hoverable: true,
clickable: true
},
yaxis: { ticks: 4, tickColor: '#eeeeee' },
xaxis: { ticks: 12, tickColor: '#ffffff' }
}
);
Flot takes the x values as numbers and displays / sorts them accordingly. If you don't want that, you can use the category mode (see this example and this fiddle with your data).
xaxis: {
//ticks: 12,
tickColor: '#ffffff',
mode: 'categories'
}
PS: 12 ticks are not possibly with your data, as there are only 4 datapoints defined.
That flot reads all data as numbers by default is described here in the documentation.
Flotr examples use a for loop to create random data, so the first index will always be sequential.
[[51,1700],[52, 1750],[1,1600],[2,1675]];
Your arrays show that flotr must be doing a sort on the array before painting the data sets as lines, bar-graphs or whatever.
I can only suggest you create a timestamp from the months and there's a time setting you can in flotr settings to format the dates as you want.
The other way is replace your anomalous data (months) with sequential indices:
var arr = [[51,1700],[52, 1750],[1,1600],[2,1675]];
for(var i=0; i<arr.length; i++) arr[1][0] = i;
Flot is doing exactly what it should do for a line chart (or any type of x-y graph). It's showing the last two points of your dataset on the left because 1 and 2 are indeed less than 51 and 52. I'm guessing that you're trying to show data that crosses a year boundary. You need to make the first two weeks of the second year later than the last two of the first. You could use actual dates instead of week numbers, in which case Flot would handle it fine. That would also give you more flexibility in labeling the x-axis. But as a quick fix, just add 52 to the second year's data, e.g.:
var scheduled = [[51,1700],[52, 1750],[53,1600],[54,1675]];
var actual = [[51,1320],[52, 1550],[53,1575],[54,1600]];
Need to draw vertical lines from a desired point rather than starting from 0.
plotLines: [{
color: '#FF0000',
width: 1,
value: 4
}, {
color: '#FF0000',
width: 1,
value: 7
}],
Here is the fiddler link: http://jsfiddle.net/bpswt3tr/4/
My requirement is to draw first vertical line from when y value is 110.2 and 2nd line from when y value is 135.6 instead of starting from zero. i.e above the plot line only. Please suggest how can I achieve this? Thanks.
Considering the documentation it is unlikely that HighCharts supports this by default, as you are only allowed to associate a value of the current axis with the line.
You might need a preprocessing step that inverts you function to get the appropriate X values. Something like:
invert(data, Y) -> list of X values with data[X] = Y
You can do this on the chart.events.load call. If you know these are the points you want to add marker elements to then it is fairly straightforward. You first get the current max label value for the yAxis. Then you add a series to the chart with the starting point being your series' value and the second point being the max viewable yAxis value. Then do the same for the second point you want to add a bar to. Then, you need to re-set the yAxis max value to the initial state because highcharts will try to increase the scale to accommodate the new points.
chart: {
events: {
load: function () {
var yMAx = this.yAxis[0].max;
console.log(yMAx);
this.addSeries({
data: [{
x: 4,
y: 110.2,
marker: {
symbol: 'triangle'
}
}, {
x: 4,
y: yMAx,
marker: {
symbol: 'triangle-down'
}
}, ],
showInLegend: false,
color: 'red',
marker: {
enabled: true
}
});
this.addSeries({
data: [{
x: 7,
y: 135.6,
marker: {
symbol: 'triangle'
}
}, {
x: 7,
y: yMAx,
marker: {
symbol: 'triangle-down'
}
}, ],
showInLegend: false,
color: 'red',
marker: {
enabled: true
}
});
this.yAxis[0].update({
max: yMAx
});
}
}
}
Sample demo.
Curve goes sometimes outside the box. I tried to play with margins and height to give it more space but couldn't get my way arround it..
Any ideas fellas ?
Try setting different values for yAxis max parameter. For example, set it to 2 or some greater value:
yAxis: {
title: {
text: 'messages'
},
labels: {
y: 20
},
min: 0,
max: 2,
...
I have created a basic boxplot using highcharts and it shows me the values for maximum, max quartile, median, min quartile and minimum when I hover the mouse over the box plot. I want to somehow display these values in the plot itself beside each of the lines.
I checked out the api and found that "dataLabel" would help but this is not supported for the boxplot. Could someone enlighten me on how to achieve this?
Thanks.
Not possible out of the box, but as mentioned by Steve Gu achievable by scatter. You can even ignore the formatter and disable the marker alltogether:
{
series: [
{
type: 'scatter',
tooltip: {
enabled: false
},
dataLabels: {
format: '{key}',
enabled: true,
y: 0,
},
data: [{ x: 0, y: 975, name: '975'}],
marker: {
enabled: false,
}
}
]
}
just disable marker and set format to key.
Add another data series, which is a type of "Scatter" and apply the data labels to this series using Marker. The trick is to use the same fill color as your background color and 0 line width so the marker will not be visible and only the label will be shown.
{
name: 'Outlier',
color: 'white',
type: 'scatter',
data: [ // x, y positions where 0 is the first category
{
name: 'This is my label for the box',
x:0, //box index. first one is 0.
y:975 //it will be bigger than the maximum value of of the box
}
],
dataLabels : {
align: 'left',
enabled : true,
formatter : function() {
return this.point.name;
},
y: 10,
},
marker: {
fillColor: 'white',
lineWidth: 0,
lineColor: 'white'
}
}
Unfortunately this option is not supported, only what you can do is use renderer to add custom text inside chart, but I'm aware that it can be not comfortable solution. http://api.highcharts.com/highcharts#Renderer.text()
Obviosuly you can reqest your suggestion in our user voice system http://highcharts.uservoice.com/