I want to show the percentage distribution in pie chart. My current chart is perfect, except it does not have percentage labels. How to add percentage. my code looks like;
<!DOCTYPE html>
<html>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.js"></script>
<body>
<canvas id="myChart" style="width:100%;max-width:600px"></canvas>
<script>
var xValues = ["Italy", "France", "Spain", "USA", "Argentina"];
var yValues = [55, 49, 44, 24, 15];
var barColors = [
"#b91d47",
"#00aba9",
"#2b5797",
"#e8c3b9",
"#1e7145"
];
new Chart("myChart", {
type: "pie",
data: {
labels: xValues,
datasets: [{
backgroundColor: barColors,
data: yValues
}]
},
options: {
title: {
display: true,
text: "World Wide Car Production"
}
}
});
</script>
</body>
</html>You just need to import some <script> from chart js. and then just modify little your code as below;
<!DOCTYPE html>
<html>
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.2/Chart.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/chartjs-plugin-datalabels@0.7.0"></script>
</head>
<body>
<canvas id="myChart" style="width:100%;max-width:600px"></canvas>
<script>
var xValues = ["Italy", "France", "Spain", "USA", "Argentina"];
var yValues = [55, 49, 44, 24, 15];
var barColors = [
"#b91d47",
"#00aba9",
"#2b5797",
"#e8c3b9",
"#1e7145"
];
var ctx = document.getElementById("myChart").getContext('2d');
var myChart =new Chart(ctx, {
type: "pie",
data: {
labels: xValues,
datasets: [{
backgroundColor: barColors,
data: yValues
}]
},
options:{
tooltips: {
enabled: true
},
plugins: {
datalabels: {
formatter: (value, ctx) => {
let sum = ctx.dataset._meta[0].total;
let percentage = (value * 100 / sum).toFixed(2) + "%";
return percentage;
},
color: '#fff',
}
},
title: {
display: true,
text: "World Wide Car Production"
}
}
});
</script>
</body>
</html>