Create a Radar Chart using Recharts in ReactJS

Radar charts, also known as spider or star charts, provide a powerful way to display data having multiple variable in a circular layout. Recharts is a popular charting library that is used for creating charts for React JS, provides an easy and efficient method to implement radar charts within your React applications.

Prerequisites:

• Basic understanding of ReactJS and its concepts.
• A React project set up with Recharts installed.

Approach: To create Radar chart using Recharts, we create a dataset with label and polar coordinate details. Then we create a polar grid and both axes i.e. polarAngle axis and polarRadius axis using data coordinates. Finally using the Radar element draws the Radar plot.

Creating React Application And Installing Module:

• Step 1: Create a React application using the following command.

  npx create-react-app foldername
  

• Step 2: After creating your project folder i.e. foldername, move to it using the following command.

  cd foldername
  

• Step 3: After creating the ReactJS application, Install the required modules using the following command.

  npm install --save recharts
  

Project Structure:

Example: Now write down the following code in the App.js file. Here, App is our default component where we have written our code.

App.js

import React from 'react';
import { Radar, RadarChart, PolarGrid,
    PolarAngleAxis, PolarRadiusAxis } from 'recharts';

const App = () => {

    // Sample data
    const data = [
        { name: 'A', x: 21 },
        { name: 'B', x: 22 },
        { name: 'C', x: -32 },
        { name: 'D', x: -14 },
        { name: 'E', x: -51 },
        { name: 'F', x: 16 },
        { name: 'G', x: 7 },
        { name: 'H', x: -8 },
        { name: 'I', x: 9 },
    ];

    return (
        <RadarChart height={500} width={500}
            outerRadius="80%" data={data}>
            <PolarGrid />
            <PolarAngleAxis dataKey="name" />
            <PolarRadiusAxis />
            <Radar dataKey="x" stroke="green"
                fill="green" fillOpacity={0.5} />
        </RadarChart>
    );
}

export default App;

Step to Run the Application: Run the application using the following command from the root directory of the project:

npm start

Output: Now open your browser and go to http://localhost:3000/, you will see the following output:

Radar chart