Chartjs v2.0: stacked bar chart
After fiddling forever, I finally got it to work, here's a sample. Somebody please update the docs!
var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
type: 'bar',
data: {
labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
datasets: [{
label: '# of Votes 1',
data: [10, 19, 3, 5, 2, 3],
backgroundColor: [
'rgba(255, 99, 132, 0.2)',
'rgba(255, 99, 132, 0.2)',
'rgba(255, 99, 132, 0.2)',
'rgba(255, 99, 132, 0.2)',
'rgba(255, 99, 132, 0.2)',
'rgba(255, 99, 132, 0.2)'
],
borderColor: [
'rgba(255,99,132,1)',
'rgba(255,99,132,1)',
'rgba(255,99,132,1)',
'rgba(255,99,132,1)',
'rgba(255,99,132,1)',
'rgba(255,99,132,1)'
],
borderWidth: 2
},
{
label: '# of Votes 2',
data: [15, 19, 3, 5, 2, 3],
backgroundColor: [
'rgba(255, 159, 64, 0.2)',
'rgba(255, 159, 64, 0.2)',
'rgba(255, 159, 64, 0.2)',
'rgba(255, 159, 64, 0.2)',
'rgba(255, 159, 64, 0.2)',
'rgba(255, 159, 64, 0.2)'
],
borderColor: [
'rgba(255, 159, 64, 1)',
'rgba(255, 159, 64, 1)',
'rgba(255, 159, 64, 1)',
'rgba(255, 159, 64, 1)',
'rgba(255, 159, 64, 1)',
'rgba(255, 159, 64, 1)'
],
borderWidth: 2
}
]
},
options: {
scales: {
yAxes: [{
stacked: true,
ticks: {
beginAtZero: true
}
}],
xAxes: [{
stacked: true,
ticks: {
beginAtZero: true
}
}]
}
}
});<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.6.0/Chart.min.js"></script>
<canvas id="myChart" width="400" height="400"></canvas>With v2.1.x, you can achieve this using the stacked option
...
options: {
scales:{
xAxes: [{
stacked: true
}],
yAxes: [{
stacked: true
}]
}
}
...
Stack Snippet
var config = {
type: 'bar',
data: {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [{
type: 'line',
label: 'Dataset 2',
data: [-65, -10, -80, -81, -56, -85, 40],
borderColor: 'black',
fill: false
}, {
type: 'bar',
label: 'Dataset 1',
backgroundColor: "red",
data: [65, 0, 80, 81, 56, 85, 40],
}, {
type: 'bar',
label: 'Dataset 3',
backgroundColor: "blue",
data: [-65, 0, -80, -81, -56, -85, -40]
}]
},
options: {
scales: {
xAxes: [{
stacked: true
}],
yAxes: [{
stacked: true
}]
}
}
};
var ctx = document.getElementById("myChart").getContext("2d");
new Chart(ctx, config);<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.1.0/Chart.bundle.min.js"></script>
<canvas id="myChart"></canvas>Just make sure that you provide an array of object(s), not just one object for xAxis and yAxis.
"options": {
"scales": {
"xAxes": [
{
"stacked": true
}
],
"yAxes": [
{
"stacked": true
}
]
}
}