I tried to remove the offset for the bar chart (offset: false), but the result has the first bar shifted to the left such that only half of the first bar is shown. Here is what I have but the beginning and end of the step chart are not showing.
function createBarChart() {
const ctx = document.getElementById('myChart');
const myChart = new Chart(ctx, {
type: 'line',
data: {
labels: ['1', '2', '3', '4', '5', '6'],
datasets: [
{
type: 'line',
label: 'Dataset 1',
data: [18, 19, 16, 12, 13, 11],
borderColor: 'rgb(54, 162, 235)',
fill: false,
radius: 0,
stepped: 'middle',
// xAxisID: 'xStepChart'
},
{
type: 'bar',
label: 'Label 2',
data: [9.35, 8.35, 8.56, 6.46, 5.04, 3.15],
//-- No gaps between bars
barPercentage: 1.0,
categoryPercentage: 1.0,
backgroundColor: ['#71797E'],
borderColor: ['#000000'],
borderWidth: 1
},
{
type: 'bar',
label: 'Label 3',
data: [20.34, 17.31, 16.39, 13.48, 11.29, 11.23],
//-- No gaps between bars
barPercentage: 1.0,
categoryPercentage: 1.0,
backgroundColor: ['#A9A9A9'],
borderColor: ['#000000'],
borderWidth: 1
},
{
type: 'bar',
label: 'Label 4',
data: [20.40, 18.57, 16.96, 14.19, 12.68, 11.98],
//-- No gaps between bars
barPercentage: 1.0,
categoryPercentage: 1.0,
backgroundColor: ['rgba(46, 142, 201, 0.2)'],
borderColor: ['rgba(61, 61, 60, 1)'],
borderWidth: 1
},
]
},
options: {
scales: {
x: {
stacked: true,
},
y: {
stacked: false
}
}
}
})
}You can define the 'line' data as an array of points (individual objects having an x and y property each). Then tie the dataset to a second non-displayed x-axis.
{
type: 'line',
label: 'Dataset 1',
data: [{x: 0, y: 18}, {x: 1, y: 19}, {x: 2, y: 16}, {x: 3, y: 12}, {x: 4, y: 13}, {x: 5, y: 11}, {x: 6, y: 11}],
...
stepped: 'end',
xAxisID: 'x2'
},
The x-axis for the 'line' dataset...
x2: {
type: 'linear',
display: false
}
Please take a look at your amended and runnable code below and see how it works.
new Chart('myChart', {
type: 'line',
data: {
labels: ['1', '2', '3', '4', '5', '6'],
datasets: [{
type: 'line',
label: 'Dataset 1',
data: [{x: 0, y: 18}, {x: 1, y: 19}, {x: 2, y: 16}, {x: 3, y: 12}, {x: 4, y: 13}, {x: 5, y: 11}, {x: 6, y: 11}],
borderColor: 'rgb(54, 162, 235)',
fill: false,
radius: 0,
stepped: 'end',
xAxisID: 'x2'
},
{
type: 'bar',
label: 'Label 2',
data: [9.35, 8.35, 8.56, 6.46, 5.04, 3.15],
//-- No gaps between bars
barPercentage: 1.0,
categoryPercentage: 1.0,
backgroundColor: ['#71797E'],
borderColor: ['#000000'],
borderWidth: 1
},
{
type: 'bar',
label: 'Label 3',
data: [20.34, 17.31, 16.39, 13.48, 11.29, 11.23],
//-- No gaps between bars
barPercentage: 1.0,
categoryPercentage: 1.0,
backgroundColor: ['#A9A9A9'],
borderColor: ['#000000'],
borderWidth: 1
},
{
type: 'bar',
label: 'Label 4',
data: [20.40, 18.57, 16.96, 14.19, 12.68, 11.98],
//-- No gaps between bars
barPercentage: 1.0,
categoryPercentage: 1.0,
backgroundColor: ['rgba(46, 142, 201, 0.2)'],
borderColor: ['rgba(61, 61, 60, 1)'],
borderWidth: 1
},
]
},
options: {
scales: {
x: {
stacked: true,
},
x2: {
type: 'linear',
display: false
},
y: {
stacked: false
}
}
}
});<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.8.0/chart.min.js"></script>
<canvas id="myChart"></canvas>