How to make multiple horizontal bar chartjs - chart.js

Question

I want to make horizontal bar chart using chartjs in react like this: chart i want to make
but i end up doing like this chart i make
can someon help me please, im new in react and chartjs
Here's the continuation of this post: How to make labels on both side from horizontal bar chart js
here's what i code:
this the data:
export const dataPasienKeluarMasuk = {
type: 'bar',
labels: [
[0, 1, 2, 3,4], // expect output 0 - 4
[5, 6, 7, 8, 9], // expect output 5 - 9
[10, 14], // ext..
[15, 19],
[20, 24],
[25, 29],
[30, 34],
],
datasets: [
{
label: 'Pasien Masuk',
xAxisID: 'A',
data: [100, 90, 80, 70, 60],
backgroundColor: 'red',
},
{
label: 'Pasien Keluar',
xAxisID: 'A',
data: [-100, -90, -80, -70, -60],
backgroundColor: 'blue',
},
],
}
here's the chart:
import { HorizontalBar } from 'react-chartjs-2'
import { dataPasienKeluarMasuk } from ...blabla
<HorizontalBar
data={dataPasienKeluarMasuk}
height={227}
options={{
responsive: true,
title: {
display: true,
text: 'Data Pasien Keluar Masuk',
fontSize: 20,
},
legend: {
display: true,
position: 'bottom',
},
scales: {
xAxes: [
{
id: 'A',
position: 'left',
},
],
},
}}
/>

Answer 1

You should define both axes as stacked:
scales: {
xAxes: [{
stacked: true
}],
yAxes: [{
stacked: true
}]
}
In order to see only positive values displayed on the x-axis ticks, you need to define a ticks.callback function on the x-axis.
ticks: {
callback: value => Math.abs(value)
}
To have only positive values displayed in the tooltips, you further need to define a tooltips.callback.label functions as shown below.
tooltips: {
callbacks: {
label: (tooltipItem, data) => {
let ds = data.datasets[tooltipItem.datasetIndex];
return ds.label + ': ' + Math.abs( ds.data[tooltipItem.index]);
}
}
},
Please take a look at the runnable code snippet below and see how it works (this is a pure Chart.js solution but it should easily be adaptable to react-chart.js).
new Chart(document.getElementById('canvas'), {
type: 'horizontalBar',
data: {
labels: ['a', 'b', 'c', 'd', 'e'],
datasets: [{
label: 'Pasien Masuk',
data: [100, 90, 80, 70, 60],
backgroundColor: 'red',
},
{
label: 'Pasien Keluar',
data: [-100, -90, -80, -70, -60],
backgroundColor: 'blue',
},
]
},
options: {
responsive: true,
title: {
display: true,
text: 'Data Pasien Keluar Masuk',
fontSize: 20,
},
legend: {
position: 'bottom',
},
tooltips: {
callbacks: {
label: (tooltipItem, data) => {
let ds = data.datasets[tooltipItem.datasetIndex];
return ds.label + ': ' + Math.abs( ds.data[tooltipItem.index]);
}
}
},
scales: {
xAxes: [{
stacked: true,
ticks: {
callback: value => Math.abs(value)
}
}],
yAxes: [{
stacked: true
}]
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.3/Chart.min.js"></script>
<canvas id="canvas"></canvas>

Answer 2

this snippet is based from uminder's answer
new Chart(document.getElementById('canvas'), {
type: 'horizontalBar',
data: {
labels: ['a', 'b', 'c', 'd', 'e'],
datasets: [{
label: 'Pasien Masuk',
data: [100, 90, 80, 70, 60],
backgroundColor: 'red',
},
{
label: 'Pasien Keluar',
data: [-100, -90, -80, -70, -60],
backgroundColor: 'blue',
},
]
},
options: {
responsive: true,
title: {
display: true,
text: 'Data Pasien Keluar Masuk',
fontSize: 20,
},
legend: {
display: true,
position: 'bottom',
},
scales: {
xAxes: [{
stacked: true,
ticks: {
// Include a dollar sign in the ticks
callback: function(value, index, values) {
return value < 0? -(value) : value
}
}
}],
yAxes: [{
stacked: true
}]
},
tooltips: {
callbacks: {
label: function(tooltipItem, data) {
var label = data.datasets[tooltipItem.datasetIndex].label || '';
var value = tooltipItem.xLabel;
value = value < 0? -(value) : value
return label + ': ' + value;
}
}
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.3/Chart.min.js"></script>
<canvas id="canvas"></canvas>