Radar Charts in JavaScript

How to make D3.js-based radar charts in Plotly.js.

New to Plotly?

Plotly is a free and open-source graphing library for JavaScript. We recommend you read our Getting Started guide for the latest installation or upgrade instructions, then move on to our Plotly Fundamentals tutorials or dive straight in to some Basic Charts tutorials.

Basic Radar Chart

data = [{
  type: 'scatterpolar',
  r: [39, 28, 8, 7, 28, 39],
  theta: ['A','B','C', 'D', 'E', 'A'],
  fill: 'toself'
}]

layout = {
  polar: {
    radialaxis: {
      visible: true,
      range: [0, 50]
    }
  },
  showlegend: false
}

Plotly.newPlot("myDiv", data, layout)

Multiple Trace Radar Chart

data = [
  {
  type: 'scatterpolar',
  r: [39, 28, 8, 7, 28, 39],
  theta: ['A','B','C', 'D', 'E', 'A'],
  fill: 'toself',
  name: 'Group A'
  },
  {
  type: 'scatterpolar',
  r: [1.5, 10, 39, 31, 15, 1.5],
  theta: ['A','B','C', 'D', 'E', 'A'],
  fill: 'toself',
  name: 'Group B'
  }
]

layout = {
  polar: {
    radialaxis: {
      visible: true,
      range: [0, 50]
    }
  }
}

Plotly.newPlot("myDiv", data, layout)