Stacked Bar Chart with Groups
Using the stack property to divide datasets into multiple stacks.
const config = {
type: 'bar',
data: data,
options: {
plugins: {
title: {
display: true,
text: 'Chart.js Bar Chart - Stacked'
},
},
responsive: true,
interaction: {
intersect: false,
},
scales: {
x: {
stacked: true,
},
y: {
stacked: true
}
}
}
};
const DATA_COUNT = 7;
const NUMBER_CFG = {count: DATA_COUNT, min: -100, max: 100};
const labels = Utils.months({count: 7});
const data = {
labels: labels,
datasets: [
{
label: 'Dataset 1',
data: Utils.numbers(NUMBER_CFG),
backgroundColor: Utils.CHART_COLORS.red,
stack: 'Stack 0',
},
{
label: 'Dataset 2',
data: Utils.numbers(NUMBER_CFG),
backgroundColor: Utils.CHART_COLORS.blue,
stack: 'Stack 0',
},
{
label: 'Dataset 3',
data: Utils.numbers(NUMBER_CFG),
backgroundColor: Utils.CHART_COLORS.green,
stack: 'Stack 1',
},
]
};
const actions = [
{
name: 'Randomize',
handler(chart) {
chart.data.datasets.forEach(dataset => {
dataset.data = Utils.numbers({count: chart.data.labels.length, min: -100, max: 100});
});
chart.update();
}
},
];
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