Vue Charts - Pareto Chart

You can use DevExtreme Chart to visualize data as a Pareto chart and display individual values along with their cumulative totals. In this demo, individual values are numbers of complaints and cumulative totals are given in percentages.

Backend API

<template> <DxChart id="chart" :data-source="dataSource" palette="Harmony Light" title="Pizza Shop Complaints" > <DxCommonSeriesSettings argument-field="complaint"/> <DxSeries name="Complaint frequency" value-field="count" axis="frequency" type="bar" color="#fac29a" /> <DxSeries name="Cumulative percentage" value-field="cumulativePercentage" axis="percentage" type="spline" color="#6b71c3" /> <DxArgumentAxis> <DxLabel overlapping-behavior="stagger"/> </DxArgumentAxis> <DxValueAxis :tick-interval="300" name="frequency" position="left" /> <DxValueAxis :tick-interval="20" :show-zero="true" :value-margins-enabled="false" name="percentage" position="right" > <DxLabel :customize-text="customizePercentageText"/> <DxConstantLine :value="80" :width="2" color="#fc3535" dash-style="dash" > <DxLabel :visible="false"/> </DxConstantLine> </DxValueAxis> <DxTooltip :enabled="true" :shared="true" :customize-tooltip="customizeTooltip" /> <DxLegend vertical-alignment="top" horizontal-alignment="center" /> </DxChart> </template> <script setup lang="ts"> import DxChart, { DxArgumentAxis, DxCommonSeriesSettings, DxLabel, DxLegend, DxSeries, DxTooltip, DxValueAxis, DxConstantLine, } from 'devextreme-vue/chart'; import { complaintsData } from './data.ts'; function customizeTooltip({ argumentText, points }: Record<string, any>) { return { html: `<div><div class='tooltip-header'>${ argumentText }</div><div class='tooltip-body'><div class='series-name'><span class='top-series-name'>${ points[0].seriesName }</span>: </div><div class='value-text'><span class='top-series-value'>${ points[0].valueText }</span></div><div class='series-name'><span class='bottom-series-name'>${ points[1].seriesName }</span>: </div><div class='value-text'><span class='bottom-series-value'>${ points[1].valueText }</span>% </div></div></div>`, }; } const customizePercentageText = ({ valueText }: { valueText: string }) => `${valueText}%`; const data = complaintsData.sort((a, b) => b.count - a.count); const totalCount = data.reduce((prevValue, { count }) => prevValue + count, 0); let cumulativeCount = 0; const dataSource = data.map(({ count, complaint }) => { cumulativeCount += count; return { complaint, count, cumulativePercentage: Math.round((cumulativeCount * 100) / totalCount), }; }); </script> <style> #chart { height: 440px; } .tooltip-header { margin-bottom: 5px; font-size: 16px; font-weight: 500; padding-bottom: 5px; border-bottom: 1px solid #c5c5c5; } .tooltip-body { width: 170px; } .tooltip-body .series-name { font-weight: normal; opacity: 0.6; display: inline-block; line-height: 1.5; padding-right: 10px; width: 126px; } .tooltip-body .value-text { display: inline-block; line-height: 1.5; width: 30px; } </style>

export const complaintsData = [ { complaint: 'Cold pizza', count: 780 }, { complaint: 'Not enough cheese', count: 120 }, { complaint: 'Underbaked or Overbaked', count: 52 }, { complaint: 'Delayed delivery', count: 1123 }, { complaint: 'Damaged pizza', count: 321 }, { complaint: 'Incorrect billing', count: 89 }, { complaint: 'Wrong size delivered', count: 222 }, ];

import { createApp } from 'vue'; import App from './App.vue'; createApp(App).mount('#app');

<!DOCTYPE html> <html lang="en"> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=5.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/26.1.5/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="./bundle.css" /> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"> </div> </div> <script src="bundles/vendor/vue.vendor.js"></script> <script src="./bundle.js"></script> </body> </html>

To create a Pareto chart you must:

Configure a Bar series and assign your primary data to this series (specify series.valueField property).
Add a Line or Spline series and assign cumulative total values to this series.
Specify valueAxis.constantLines to illustrate Pareto principle correlations (80/20).