Pare to Chart in EJ2 TypeScript control

13 Dec 202424 minutes to read

Pareto

Pareto charts are used to find the cumulative values of data in different categories. It is a combination of Column and Line series, where the initial values are represented by the column chart and the cumulative values are represented by the line chart.

To render a pareto series in your chart, you need to follow a few steps to configure it correctly. Here’s a concise guide on how to do this:

Set the series type: Define the series type as Pareto in your chart configuration. This indicates that the data should be represented as a pareto chart, will use a combination of column and line series.
Inject the necessary modules: Use the Chart.Inject(ParetoSeries, ColumnSeries, LineSeries) method to inject the ParetoSeries, ColumnSeries, LineSeries modules into your chart. This step is essential, as it ensures that the necessary functionalities for rendering pareto series are available in your chart.

index.ts
index.html
datasource.ts
import { Chart, ColumnSeries, Legend, Tooltip } from '@syncfusion/ej2-charts';
import { ParetoSeries, Category, LineSeries } from '@syncfusion/ej2-charts';
import { paretoData } from './datasource.ts';
Chart.Inject(ColumnSeries, Category, ParetoSeries, LineSeries, Legend, Tooltip);

/**
 * Sample for Pareto chart
 */
let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1,
        valueType: 'Category',
        majorGridLines: { width: 0 }, minorGridLines: { width: 0 },
        majorTickLines: { width: 0 }, minorTickLines: { width: 0 },
        lineStyle: { width: 0 }, labelIntersectAction: 'Rotate45'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        title: 'Frequency of Occurence',
        minimum: 0,
        maximum: 25,
        interval: 5,
        lineStyle: { width: 0 },
        majorTickLines: { width: 0 }, majorGridLines: { width: 1 },
        minorGridLines: { width: 1 }, minorTickLines: { width: 0 }
    },
    chartArea: {
        border: {
            width: 0
        }
    },
    //Initializing Chart Series
    series: [
        {
            type: 'Pareto',
            dataSource: paretoData,
            xName: 'x', yName: 'y', name: 'Defect', width: 2,
            paretoOptions: {
                marker: { visible: true, isFilled: true, width: 7, height: 7 },
                width: 2
            }
        }
    ],
    //Initializing Chart title
    title: 'Pareto chart - Defects in Shirts',
    legendSettings: { visible: true },
    //Initializing User Interaction
    tooltip: {
        enable: true,
        shared: true
    }
});
chart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let paretoData: Object[] = [
    { x: 'Button Defect', y: 23 },
    { x: 'Pocket Defect', y: 16 },
    { x: 'Coller Defect', y: 10 },
    { x: 'Cuff Defect', y: 7 },
    { x: 'Sleeve Defect', y: 6 },
    { x: 'Other Defect', y: 2 }
];

Binding data with series

You can bind data to the chart using the dataSource property within the series configuration. This allows you to connect a JSON dataset or remote data to your chart. To display the data correctly, map the fields from the data to the chart series xName and yName properties.

index.ts
index.html
datasource.ts
import { Chart, ColumnSeries, Legend, Tooltip } from '@syncfusion/ej2-charts';
import { ParetoSeries, Category, LineSeries } from '@syncfusion/ej2-charts';
import { paretoData } from './datasource.ts';
Chart.Inject(ColumnSeries, Category, ParetoSeries, LineSeries, Legend, Tooltip);

/**
 * Sample for Pareto chart
 */
let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1,
        valueType: 'Category',
        majorGridLines: { width: 0 }, minorGridLines: { width: 0 },
        majorTickLines: { width: 0 }, minorTickLines: { width: 0 },
        lineStyle: { width: 0 }, labelIntersectAction: 'Rotate45'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        title: 'Frequency of Occurence',
        minimum: 0,
        maximum: 25,
        interval: 5,
        lineStyle: { width: 0 },
        majorTickLines: { width: 0 }, majorGridLines: { width: 1 },
        minorGridLines: { width: 1 }, minorTickLines: { width: 0 }
    },
    chartArea: {
        border: {
            width: 0
        }
    },
    //Initializing Chart Series
    series: [
        {
            type: 'Pareto',
            dataSource: paretoData,
            xName: 'x', yName: 'y', name: 'Defect', width: 2,
            paretoOptions: {
                marker: { visible: true, isFilled: true, width: 7, height: 7 },
                width: 2
            }
        }
    ],
    //Initializing Chart title
    title: 'Pareto chart - Defects in Shirts',
    legendSettings: { visible: true },
    //Initializing User Interaction
    tooltip: {
        enable: true,
        shared: true
    }
});
chart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let paretoData: Object[] = [
    { x: 'Button Defect', y: 23 },
    { x: 'Pocket Defect', y: 16 },
    { x: 'Coller Defect', y: 10 },
    { x: 'Cuff Defect', y: 7 },
    { x: 'Sleeve Defect', y: 6 },
    { x: 'Other Defect', y: 2 }
];

Pareto customization

Fill

Use the fill property to apply a color to the pareto line. By default, a color based on the theme is used.

index.ts
index.html
datasource.ts
import { Chart, ColumnSeries, Legend, Tooltip } from '@syncfusion/ej2-charts';
import { ParetoSeries, Category, LineSeries, Highlight } from '@syncfusion/ej2-charts';
import { paretoData } from './datasource.ts';
import { Browser } from '@syncfusion/ej2-base';
Chart.Inject(ColumnSeries, Category, ParetoSeries, LineSeries, Legend, Tooltip, Highlight);

/**
 * Sample for Pareto chart
 */

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1,
        valueType: 'Category',
        majorGridLines: { width: 0 }, minorGridLines: { width: 0 },
        majorTickLines: { width: 0 }, minorTickLines: { width: 0 },
        lineStyle: { width: 0 }, labelIntersectAction: 'Rotate45'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        title: 'Frequency of Occurence',
        minimum: 0,
        maximum: 25,
        interval: 5,
        lineStyle: { width: 0 },
        majorTickLines: { width: 0 }, majorGridLines: { width: 1 },
        minorGridLines: { width: 1 }, minorTickLines: { width: 0 }
    },
    chartArea: {
        border: {
            width: 0
        }
    },
    //Initializing Chart Series
    series: [
        {
            type: 'Pareto',
            dataSource: paretoData,
            xName: 'x', yName: 'y', name: 'Defect', width: 2, opacity: 0.75, columnWidth: 0.4,
            paretoOptions: {
                fill: '#F7523F'
            },
            cornerRadius: { topLeft: Browser.isDevice ? 4 : 6, topRight: Browser.isDevice ? 4 : 6 }
        }
    ],
    //Initializing Chart title
    title: 'Defects in Shirts',
    legendSettings: { visible: true, enableHighlight: true },
    //Initializing User Interaction
    tooltip: {
        enable: true,
        shared: true,
        format: '${series.name} : <b>${point.y}</b>'
    }
});
chart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let paretoData: Object[] = [
    { x: 'Button Defect', y: 23 },
    { x: 'Pocket Defect', y: 16 },
    { x: 'Collar Defect', y: 10 },
    { x: 'Cuff Defect', y: 7 },
    { x: 'Sleeve Defect', y: 6 },
    { x: 'Other Defect', y: 2 }
];

Width

Use the width property to control the thickness of the line for the pareto series, which affects its visual weight on the chart.

index.ts
index.html
datasource.ts
import { Chart, ColumnSeries, Legend, Tooltip } from '@syncfusion/ej2-charts';
import { ParetoSeries, Category, LineSeries, Highlight } from '@syncfusion/ej2-charts';
import { paretoData } from './datasource.ts';
import { Browser } from '@syncfusion/ej2-base';
Chart.Inject(ColumnSeries, Category, ParetoSeries, LineSeries, Legend, Tooltip, Highlight);

/**
 * Sample for Pareto chart
 */

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1,
        valueType: 'Category',
        majorGridLines: { width: 0 }, minorGridLines: { width: 0 },
        majorTickLines: { width: 0 }, minorTickLines: { width: 0 },
        lineStyle: { width: 0 }, labelIntersectAction: 'Rotate45'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        title: 'Frequency of Occurence',
        minimum: 0,
        maximum: 25,
        interval: 5,
        lineStyle: { width: 0 },
        majorTickLines: { width: 0 }, majorGridLines: { width: 1 },
        minorGridLines: { width: 1 }, minorTickLines: { width: 0 }
    },
    chartArea: {
        border: {
            width: 0
        }
    },
    //Initializing Chart Series
    series: [
        {
            type: 'Pareto',
            dataSource: paretoData,
            xName: 'x', yName: 'y', name: 'Defect', width: 2, opacity: 0.75, columnWidth: 0.4,
            paretoOptions: {
                fill: '#F7523F',
                width: 2
            },
            cornerRadius: { topLeft: Browser.isDevice ? 4 : 6, topRight: Browser.isDevice ? 4 : 6 }
        }
    ],
    //Initializing Chart title
    title: 'Defects in Shirts',
    legendSettings: { visible: true, enableHighlight: true },
    //Initializing User Interaction
    tooltip: {
        enable: true,
        shared: true,
        format: '${series.name} : <b>${point.y}</b>'
    }
});
chart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let paretoData: Object[] = [
    { x: 'Button Defect', y: 23 },
    { x: 'Pocket Defect', y: 16 },
    { x: 'Collar Defect', y: 10 },
    { x: 'Cuff Defect', y: 7 },
    { x: 'Sleeve Defect', y: 6 },
    { x: 'Other Defect', y: 2 }
];

Dash array

The dashArray property determines the pattern of dashes and gaps in the pareto line series.

index.ts
index.html
datasource.ts
import { Chart, ColumnSeries, Legend, Tooltip } from '@syncfusion/ej2-charts';
import { ParetoSeries, Category, LineSeries, Highlight } from '@syncfusion/ej2-charts';
import { paretoData } from './datasource.ts';
import { Browser } from '@syncfusion/ej2-base';
Chart.Inject(ColumnSeries, Category, ParetoSeries, LineSeries, Legend, Tooltip, Highlight);

/**
 * Sample for Pareto chart
 */

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1,
        valueType: 'Category',
        majorGridLines: { width: 0 }, minorGridLines: { width: 0 },
        majorTickLines: { width: 0 }, minorTickLines: { width: 0 },
        lineStyle: { width: 0 }, labelIntersectAction: 'Rotate45'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        title: 'Frequency of Occurence',
        minimum: 0,
        maximum: 25,
        interval: 5,
        lineStyle: { width: 0 },
        majorTickLines: { width: 0 }, majorGridLines: { width: 1 },
        minorGridLines: { width: 1 }, minorTickLines: { width: 0 }
    },
    chartArea: {
        border: {
            width: 0
        }
    },
    //Initializing Chart Series
    series: [
        {
            type: 'Pareto',
            dataSource: paretoData,
            xName: 'x', yName: 'y', name: 'Defect', width: 2, opacity: 0.75, columnWidth: 0.4,
            paretoOptions: {
                fill: '#F7523F',
                width: 2,
                dashArray: '3,3'
            },
            cornerRadius: { topLeft: Browser.isDevice ? 4 : 6, topRight: Browser.isDevice ? 4 : 6 }
        }
    ],
    //Initializing Chart title
    title: 'Defects in Shirts',
    legendSettings: { visible: true, enableHighlight: true },
    //Initializing User Interaction
    tooltip: {
        enable: true,
        shared: true,
        format: '${series.name} : <b>${point.y}</b>'
    }
});
chart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let paretoData: Object[] = [
    { x: 'Button Defect', y: 23 },
    { x: 'Pocket Defect', y: 16 },
    { x: 'Collar Defect', y: 10 },
    { x: 'Cuff Defect', y: 7 },
    { x: 'Sleeve Defect', y: 6 },
    { x: 'Other Defect', y: 2 }
];

Marker

Use the marker property to display and customize markers for individual points in a pareto line.

index.ts
index.html
datasource.ts
import { Chart, ColumnSeries, Legend, Tooltip } from '@syncfusion/ej2-charts';
import { ParetoSeries, Category, LineSeries, Highlight } from '@syncfusion/ej2-charts';
import { paretoData } from './datasource.ts';
import { Browser } from '@syncfusion/ej2-base';
Chart.Inject(ColumnSeries, Category, ParetoSeries, LineSeries, Legend, Tooltip, Highlight);

/**
 * Sample for Pareto chart
 */

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1,
        valueType: 'Category',
        majorGridLines: { width: 0 }, minorGridLines: { width: 0 },
        majorTickLines: { width: 0 }, minorTickLines: { width: 0 },
        lineStyle: { width: 0 }, labelIntersectAction: 'Rotate45'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        title: 'Frequency of Occurence',
        minimum: 0,
        maximum: 25,
        interval: 5,
        lineStyle: { width: 0 },
        majorTickLines: { width: 0 }, majorGridLines: { width: 1 },
        minorGridLines: { width: 1 }, minorTickLines: { width: 0 }
    },
    chartArea: {
        border: {
            width: 0
        }
    },
    //Initializing Chart Series
    series: [
        {
            type: 'Pareto',
            dataSource: paretoData,
            xName: 'x', yName: 'y', name: 'Defect', width: 2, opacity: 0.75, columnWidth: 0.4,
            paretoOptions: {
                marker: { visible: true, isFilled: true, width: 7, height: 7 },
                fill: '#F7523F',
                width: 2
            },
            cornerRadius: { topLeft: Browser.isDevice ? 4 : 6, topRight: Browser.isDevice ? 4 : 6 }
        }
    ],
    //Initializing Chart title
    title: 'Defects in Shirts',
    legendSettings: { visible: true, enableHighlight: true },
    //Initializing User Interaction
    tooltip: {
        enable: true,
        shared: true,
        format: '${series.name} : <b>${point.y}</b>'
    }
});
chart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let paretoData: Object[] = [
    { x: 'Button Defect', y: 23 },
    { x: 'Pocket Defect', y: 16 },
    { x: 'Collar Defect', y: 10 },
    { x: 'Cuff Defect', y: 7 },
    { x: 'Sleeve Defect', y: 6 },
    { x: 'Other Defect', y: 2 }
];

Show axis

Use the showAxis property to show or hide the secondary axis for the pareto series.

index.ts
index.html
datasource.ts
import { Chart, ColumnSeries, Legend, Tooltip } from '@syncfusion/ej2-charts';
import { ParetoSeries, Category, LineSeries, Highlight } from '@syncfusion/ej2-charts';
import { paretoData } from './datasource.ts';
import { Browser } from '@syncfusion/ej2-base';
Chart.Inject(ColumnSeries, Category, ParetoSeries, LineSeries, Legend, Tooltip, Highlight);

/**
 * Sample for Pareto chart
 */

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1,
        valueType: 'Category',
        majorGridLines: { width: 0 }, minorGridLines: { width: 0 },
        majorTickLines: { width: 0 }, minorTickLines: { width: 0 },
        lineStyle: { width: 0 }, labelIntersectAction: 'Rotate45'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        title: 'Frequency of Occurence',
        minimum: 0,
        maximum: 25,
        interval: 5,
        lineStyle: { width: 0 },
        majorTickLines: { width: 0 }, majorGridLines: { width: 1 },
        minorGridLines: { width: 1 }, minorTickLines: { width: 0 }
    },
    chartArea: {
        border: {
            width: 0
        }
    },
    //Initializing Chart Series
    series: [
        {
            type: 'Pareto',
            dataSource: paretoData,
            xName: 'x', yName: 'y', name: 'Defect', width: 2, opacity: 0.75, columnWidth: 0.4,
            paretoOptions: {
                marker: { visible: true, isFilled: true, width: 7, height: 7 },
                fill: '#F7523F',
                width: 2,
                showAxis: false
            },
            cornerRadius: { topLeft: Browser.isDevice ? 4 : 6, topRight: Browser.isDevice ? 4 : 6 }
        }
    ],
    //Initializing Chart title
    title: 'Defects in Shirts',
    legendSettings: { visible: true, enableHighlight: true },
    //Initializing User Interaction
    tooltip: {
        enable: true,
        shared: true,
        format: '${series.name} : <b>${point.y}</b>'
    }
});
chart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let paretoData: Object[] = [
    { x: 'Button Defect', y: 23 },
    { x: 'Pocket Defect', y: 16 },
    { x: 'Collar Defect', y: 10 },
    { x: 'Cuff Defect', y: 7 },
    { x: 'Sleeve Defect', y: 6 },
    { x: 'Other Defect', y: 2 }
];

Empty points

Data points with null or undefined values are considered empty. Empty data points are ignored and not plotted on the chart.

Mode

Use the mode property to define how empty or missing data points are handled in the series. The default mode for empty points is Gap.

index.ts
index.html
datasource.ts
import { Chart, ColumnSeries, Legend, Tooltip } from '@syncfusion/ej2-charts';
import { ParetoSeries, Category, LineSeries, Highlight } from '@syncfusion/ej2-charts';
import { paretoData } from './datasource.ts';
import { Browser } from '@syncfusion/ej2-base';
Chart.Inject(ColumnSeries, Category, ParetoSeries, LineSeries, Legend, Tooltip, Highlight);

/**
 * Sample for Pareto chart
 */

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1,
        valueType: 'Category',
        majorGridLines: { width: 0 }, minorGridLines: { width: 0 },
        majorTickLines: { width: 0 }, minorTickLines: { width: 0 },
        lineStyle: { width: 0 }, labelIntersectAction: 'Rotate45'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        title: 'Frequency of Occurence',
        minimum: 0,
        maximum: 25,
        interval: 5,
        lineStyle: { width: 0 },
        majorTickLines: { width: 0 }, majorGridLines: { width: 1 },
        minorGridLines: { width: 1 }, minorTickLines: { width: 0 }
    },
    chartArea: {
        border: {
            width: 0
        }
    },
    //Initializing Chart Series
    series: [
        {
            type: 'Pareto',
            dataSource: paretoData,
            xName: 'x', yName: 'y', name: 'Defect', width: 2, opacity: 0.75, columnWidth: 0.4,
            paretoOptions: {
                marker: { visible: true, isFilled: true, width: 7, height: 7 },
                fill: '#F7523F',
                width: 2
            },
            cornerRadius: { topLeft: Browser.isDevice ? 4 : 6, topRight: Browser.isDevice ? 4 : 6 },
            emptyPointSettings: {
                mode: 'Average'
            }
        }
    ],
    //Initializing Chart title
    title: 'Defects in Shirts',
    legendSettings: { visible: true, enableHighlight: true },
    //Initializing User Interaction
    tooltip: {
        enable: true,
        shared: true,
        format: '${series.name} : <b>${point.y}</b>'
    }
});
chart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let paretoData: Object[] = [
    { x: 'Button Defect', y: 23 },
    { x: 'Pocket Defect', y: 16 },
    { x: 'Collar Defect', y: null },
    { x: 'Cuff Defect', y: 7 },
    { x: 'Sleeve Defect', y: 6 },
    { x: 'Other Defect', y: 2 },
    { x: 'Stitching Defect', y: null },
    { x: 'Zipper Defect', y: 3 },
    { x: 'Fabric Defect', y: 9 }
];

Fill

Use the fill property to customize the fill color of empty points in the series.

index.ts
index.html
datasource.ts
import { Chart, ColumnSeries, Legend, Tooltip } from '@syncfusion/ej2-charts';
import { ParetoSeries, Category, LineSeries, Highlight } from '@syncfusion/ej2-charts';
import { paretoData } from './datasource.ts';
import { Browser } from '@syncfusion/ej2-base';
Chart.Inject(ColumnSeries, Category, ParetoSeries, LineSeries, Legend, Tooltip, Highlight);

/**
 * Sample for Pareto chart
 */

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1,
        valueType: 'Category',
        majorGridLines: { width: 0 }, minorGridLines: { width: 0 },
        majorTickLines: { width: 0 }, minorTickLines: { width: 0 },
        lineStyle: { width: 0 }, labelIntersectAction: 'Rotate45'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        title: 'Frequency of Occurence',
        minimum: 0,
        maximum: 25,
        interval: 5,
        lineStyle: { width: 0 },
        majorTickLines: { width: 0 }, majorGridLines: { width: 1 },
        minorGridLines: { width: 1 }, minorTickLines: { width: 0 }
    },
    chartArea: {
        border: {
            width: 0
        }
    },
    //Initializing Chart Series
    series: [
        {
            type: 'Pareto',
            dataSource: paretoData,
            xName: 'x', yName: 'y', name: 'Defect', width: 2, opacity: 0.75, columnWidth: 0.4,
            paretoOptions: {
                marker: { visible: true, isFilled: true, width: 7, height: 7 },
                fill: '#F7523F',
                width: 2
            },
            cornerRadius: { topLeft: Browser.isDevice ? 4 : 6, topRight: Browser.isDevice ? 4 : 6 },
            emptyPointSettings: {
                mode: 'Average',
                fill: 'red'
            }
        }
    ],
    //Initializing Chart title
    title: 'Defects in Shirts',
    legendSettings: { visible: true, enableHighlight: true },
    //Initializing User Interaction
    tooltip: {
        enable: true,
        shared: true,
        format: '${series.name} : <b>${point.y}</b>'
    }
});
chart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let paretoData: Object[] = [
    { x: 'Button Defect', y: 23 },
    { x: 'Pocket Defect', y: 16 },
    { x: 'Collar Defect', y: null },
    { x: 'Cuff Defect', y: 7 },
    { x: 'Sleeve Defect', y: 6 },
    { x: 'Other Defect', y: 2 },
    { x: 'Stitching Defect', y: null },
    { x: 'Zipper Defect', y: 3 },
    { x: 'Fabric Defect', y: 9 }
];

Border

Use the border property to customize the width and color of the border for empty points.

index.ts
index.html
datasource.ts
import { Chart, ColumnSeries, Legend, Tooltip } from '@syncfusion/ej2-charts';
import { ParetoSeries, Category, LineSeries, Highlight } from '@syncfusion/ej2-charts';
import { paretoData } from './datasource.ts';
import { Browser } from '@syncfusion/ej2-base';
Chart.Inject(ColumnSeries, Category, ParetoSeries, LineSeries, Legend, Tooltip, Highlight);

/**
 * Sample for Pareto chart
 */

let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1,
        valueType: 'Category',
        majorGridLines: { width: 0 }, minorGridLines: { width: 0 },
        majorTickLines: { width: 0 }, minorTickLines: { width: 0 },
        lineStyle: { width: 0 }, labelIntersectAction: 'Rotate45'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        title: 'Frequency of Occurence',
        minimum: 0,
        maximum: 25,
        interval: 5,
        lineStyle: { width: 0 },
        majorTickLines: { width: 0 }, majorGridLines: { width: 1 },
        minorGridLines: { width: 1 }, minorTickLines: { width: 0 }
    },
    chartArea: {
        border: {
            width: 0
        }
    },
    //Initializing Chart Series
    series: [
        {
            type: 'Pareto',
            dataSource: paretoData,
            xName: 'x', yName: 'y', name: 'Defect', width: 2, opacity: 0.75, columnWidth: 0.4,
            paretoOptions: {
                marker: { visible: true, isFilled: true, width: 7, height: 7 },
                fill: '#F7523F',
                width: 2
            },
            cornerRadius: { topLeft: Browser.isDevice ? 4 : 6, topRight: Browser.isDevice ? 4 : 6 },
            emptyPointSettings: {
                mode: 'Average',
                fill: 'red',
                border: { width: 2, color: 'green' }
            }
        }
    ],
    //Initializing Chart title
    title: 'Defects in Shirts',
    legendSettings: { visible: true, enableHighlight: true },
    //Initializing User Interaction
    tooltip: {
        enable: true,
        shared: true,
        format: '${series.name} : <b>${point.y}</b>'
    }
});
chart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let paretoData: Object[] = [
    { x: 'Button Defect', y: 23 },
    { x: 'Pocket Defect', y: 16 },
    { x: 'Collar Defect', y: null },
    { x: 'Cuff Defect', y: 7 },
    { x: 'Sleeve Defect', y: 6 },
    { x: 'Other Defect', y: 2 },
    { x: 'Stitching Defect', y: null },
    { x: 'Zipper Defect', y: 3 },
    { x: 'Fabric Defect', y: 9 }
];

Events

Series render

The seriesRender event allows you to customize series properties, such as data, fill, and name, before they are rendered on the chart.

index.ts
index.html
datasource.ts
import { Chart, ColumnSeries, Legend, Tooltip, ISeriesRenderEventArgs } from '@syncfusion/ej2-charts';
import { ParetoSeries, Category, LineSeries } from '@syncfusion/ej2-charts';
import { paretoData } from './datasource.ts';
Chart.Inject(ColumnSeries, Category, ParetoSeries, LineSeries, Legend, Tooltip);

/**
 * Sample for Pareto chart
 */
let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1,
        valueType: 'Category',
        majorGridLines: { width: 0 }, minorGridLines: { width: 0 },
        majorTickLines: { width: 0 }, minorTickLines: { width: 0 },
        lineStyle: { width: 0 }, labelIntersectAction: 'Rotate45'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        title: 'Frequency of Occurence',
        minimum: 0,
        maximum: 25,
        interval: 5,
        lineStyle: { width: 0 },
        majorTickLines: { width: 0 }, majorGridLines: { width: 1 },
        minorGridLines: { width: 1 }, minorTickLines: { width: 0 }
    },
    chartArea: {
        border: {
            width: 0
        }
    },
    //Initializing Chart Series
    series: [
        {
            type: 'Pareto',
            dataSource: paretoData,
            xName: 'x', yName: 'y', name: 'Defect', width: 2,
            paretoOptions: {
                marker: { visible: true, isFilled: true, width: 7, height: 7 },
                width: 2
            }
        }
    ],
    //Initializing Chart title
    title: 'Pareto chart - Defects in Shirts',
    legendSettings: { visible: true },
    //Initializing User Interaction
    tooltip: {
        enable: true,
        shared: true
    },
    seriesRender: (args: ISeriesRenderEventArgs) => {
        args.fill = 'green';
    }
});
chart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let paretoData: Object[] = [
    { x: 'Button Defect', y: 23 },
    { x: 'Pocket Defect', y: 16 },
    { x: 'Coller Defect', y: 10 },
    { x: 'Cuff Defect', y: 7 },
    { x: 'Sleeve Defect', y: 6 },
    { x: 'Other Defect', y: 2 }
];

Point render

The pointRender event allows you to customize each data point before it is rendered on the chart.

index.ts
index.html
datasource.ts
import { Chart, ColumnSeries, Legend, Tooltip, IPointRenderEventArgs } from '@syncfusion/ej2-charts';
import { ParetoSeries, Category, LineSeries } from '@syncfusion/ej2-charts';
import { paretoData } from './datasource.ts';
Chart.Inject(ColumnSeries, Category, ParetoSeries, LineSeries, Legend, Tooltip);

/**
 * Sample for Pareto chart
 */
let chart: Chart = new Chart({
    //Initializing Primary X Axis
    primaryXAxis: {
        interval: 1,
        valueType: 'Category',
        majorGridLines: { width: 0 }, minorGridLines: { width: 0 },
        majorTickLines: { width: 0 }, minorTickLines: { width: 0 },
        lineStyle: { width: 0 }, labelIntersectAction: 'Rotate45'
    },
    //Initializing Primary Y Axis
    primaryYAxis:
    {
        title: 'Frequency of Occurence',
        minimum: 0,
        maximum: 25,
        interval: 5,
        lineStyle: { width: 0 },
        majorTickLines: { width: 0 }, majorGridLines: { width: 1 },
        minorGridLines: { width: 1 }, minorTickLines: { width: 0 }
    },
    chartArea: {
        border: {
            width: 0
        }
    },
    //Initializing Chart Series
    series: [
        {
            type: 'Pareto',
            dataSource: paretoData,
            xName: 'x', yName: 'y', name: 'Defect', width: 2,
            paretoOptions: {
                marker: { visible: true, isFilled: true, width: 7, height: 7 },
                width: 2
            }
        }
    ],
    //Initializing Chart title
    title: 'Pareto chart - Defects in Shirts',
    legendSettings: { visible: true },
    //Initializing User Interaction
    tooltip: {
        enable: true,
        shared: true
    },
    pointRender: (args: IPointRenderEventArgs) => {
        if (args.point.index % 2 !== 0) {
            args.fill = '#ff6347';
        }
        else {
            args.fill = '#009cb8';
        }
    }
});
chart.appendTo('#element');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 Animation</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="Typescript UI Controls" />
    <meta name="author" content="Syncfusion" />
    <link href="index.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>Loading....</div>
    <div id='container'>
        <div id='element'></div>
    </div>
</body>

</html>
export let paretoData: Object[] = [
    { x: 'Button Defect', y: 23 },
    { x: 'Pocket Defect', y: 16 },
    { x: 'Coller Defect', y: 10 },
    { x: 'Cuff Defect', y: 7 },
    { x: 'Sleeve Defect', y: 6 },
    { x: 'Other Defect', y: 2 }
];