Pareto (React)

Pareto charts, named after Vilfredo Pareto, contain both bars and a line graph, where individual values are represented in descending order by bars, and the cumulative total is represented by the line.

The left vertical axis may contain the frequency of occurrence, cost or any another important unit of measure. The right vertical axis is the cumulative percentage of the total number of occurrences, cost, or total of the particular unit of measure.

Pareto charts help identify the items that account for most of the occurrences so they can be prioritized.

This example uses React.

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './app.css'; // import * as React from 'react'; import * as ReactDOM from 'react-dom'; // import * as chart from '@grapecity/wijmo.chart'; import * as wjChart from '@grapecity/wijmo.react.chart'; import { getData } from './data'; class App extends React.Component { constructor(props) { super(props); this.updateData = () => { let view = this.state.data; // view.deferUpdate(() => { view.items.forEach(item => { item.sales += (Math.random() - .5) * .5 * item.sales; }); }); }; this.state = { data: getData(), palette: (() => { // Get random palette let palettes = Object.getOwnPropertyNames(chart.Palettes) .filter(prop => typeof chart.Palettes[prop] === "object" && prop !== 'prototype'); let rand = Math.floor(Math.random() * palettes.length); // return chart.Palettes[palettes[rand]]; })() }; } render() { return <div className="container-fluid"> <div className="form-group"> <button id="btnUpdate" className="btn btn-default" onClick={this.updateData}>Update</button> </div> <wjChart.FlexChart itemsSource={this.state.data} palette={this.state.palette} chartType="Column" binding="make"> <wjChart.FlexChartAxis wjProperty="axisY" format="n0" title="Sales (thousands)" axisLine={true}> </wjChart.FlexChartAxis> <wjChart.FlexChartAxis wjProperty="axisX" labelAngle={-90}></wjChart.FlexChartAxis> <wjChart.FlexChartLegend position="None"></wjChart.FlexChartLegend> <wjChart.FlexChartSeries binding="sales" name="Sales (thousands)"></wjChart.FlexChartSeries> <wjChart.FlexChartSeries binding="cumSales" name="Cumulative Sales" chartType="Line" style={{ 'stroke': 'orange', 'strokeWidth': 4 }}> <wjChart.FlexChartAxis wjProperty="axisY" position="Right" title="Cumulative Sales" format="p0" min={0} axisLine={true}> </wjChart.FlexChartAxis> </wjChart.FlexChartSeries> </wjChart.FlexChart> </div>; } } ReactDOM.render(<App />, document.getElementById('app'));
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexChart Pareto</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div id="app"></div> </body> </html>
.wj-flexchart { margin: 0 auto; border: none; } body { margin-bottom: 24pt; }
import * as wijmo from '@grapecity/wijmo'; export function getData() { // some raw data let data = [ { make: 'Vokswagen', sales: 2532435 }, { make: 'Toyota', sales: 2338453 }, { make: 'Renault-Nissan', sales: 2336543 }, { make: 'GM', sales: 2252543 }, { make: 'Hyundai-Kia', sales: 1553547 }, { make: 'Ford', sales: 1521153 }, { make: 'Suzuki', sales: 739123 }, { make: 'PSA', sales: 682121 }, { make: 'Daimler', sales: 440234 }, { make: 'BMW Group', sales: 586121 }, { make: 'Geely', sales: 410353 }, { make: 'Mazda', sales: 389243 }, { make: 'Chang\'an', sales: 389323 }, { make: 'Subaru', sales: 230221 }, { make: 'Tata Group', sales: 242123 } ]; // // created sorted view let view = new wijmo.CollectionView(data); view.sortDescriptions.push(new wijmo.SortDescription('sales', false)); // // add cumulative sales _updateCumSales(view); // // update cumulative sales when the data changes view.collectionChanged.addHandler(() => _updateCumSales(view)); // // done return view; } // // update cumulative sales function _updateCumSales(view) { let totalSales = view.getAggregate(wijmo.Aggregate.Sum, 'sales'), cumSales = 0; // view.items.forEach((item) => { cumSales += item.sales; item.cumSales = cumSales / totalSales; }); }
(function (global) { System.config({ transpiler: 'plugin-babel', babelOptions: { es2015: true, react: true }, meta: { '*.css': { loader: 'css' } }, paths: { // paths serve as alias 'npm:': 'node_modules/' }, // map tells the System loader where to look for things map: { 'jszip': 'npm:jszip/dist/jszip.js', '@grapecity/wijmo': 'npm:@grapecity/wijmo/index.js', '@grapecity/wijmo.input': 'npm:@grapecity/wijmo.input/index.js', '@grapecity/wijmo.styles': 'npm:@grapecity/wijmo.styles', '@grapecity/wijmo.cultures': 'npm:@grapecity/wijmo.cultures', '@grapecity/wijmo.chart': 'npm:@grapecity/wijmo.chart/index.js', '@grapecity/wijmo.chart.analytics': 'npm:@grapecity/wijmo.chart.analytics/index.js', '@grapecity/wijmo.chart.animation': 'npm:@grapecity/wijmo.chart.animation/index.js', '@grapecity/wijmo.chart.annotation': 'npm:@grapecity/wijmo.chart.annotation/index.js', '@grapecity/wijmo.chart.finance': 'npm:@grapecity/wijmo.chart.finance/index.js', '@grapecity/wijmo.chart.finance.analytics': 'npm:@grapecity/wijmo.chart.finance.analytics/index.js', '@grapecity/wijmo.chart.hierarchical': 'npm:@grapecity/wijmo.chart.hierarchical/index.js', '@grapecity/wijmo.chart.interaction': 'npm:@grapecity/wijmo.chart.interaction/index.js', '@grapecity/wijmo.chart.radar': 'npm:@grapecity/wijmo.chart.radar/index.js', '@grapecity/wijmo.chart.render': 'npm:@grapecity/wijmo.chart.render/index.js', '@grapecity/wijmo.chart.webgl': 'npm:@grapecity/wijmo.chart.webgl/index.js', '@grapecity/wijmo.gauge': 'npm:@grapecity/wijmo.gauge/index.js', '@grapecity/wijmo.grid': 'npm:@grapecity/wijmo.grid/index.js', '@grapecity/wijmo.grid.detail': 'npm:@grapecity/wijmo.grid.detail/index.js', '@grapecity/wijmo.grid.filter': 'npm:@grapecity/wijmo.grid.filter/index.js', '@grapecity/wijmo.grid.search': 'npm:@grapecity/wijmo.grid.search/index.js', '@grapecity/wijmo.grid.grouppanel': 'npm:@grapecity/wijmo.grid.grouppanel/index.js', '@grapecity/wijmo.grid.multirow': 'npm:@grapecity/wijmo.grid.multirow/index.js', '@grapecity/wijmo.grid.transposed': 'npm:@grapecity/wijmo.grid.transposed/index.js', '@grapecity/wijmo.grid.pdf': 'npm:@grapecity/wijmo.grid.pdf/index.js', '@grapecity/wijmo.grid.sheet': 'npm:@grapecity/wijmo.grid.sheet/index.js', '@grapecity/wijmo.grid.xlsx': 'npm:@grapecity/wijmo.grid.xlsx/index.js', '@grapecity/wijmo.grid.selector': 'npm:@grapecity/wijmo.grid.selector/index.js', '@grapecity/wijmo.grid.cellmaker': 'npm:@grapecity/wijmo.grid.cellmaker/index.js', '@grapecity/wijmo.grid.immutable': 'npm:@grapecity/wijmo.grid.immutable/index.js', '@grapecity/wijmo.touch': 'npm:@grapecity/wijmo.touch/index.js', '@grapecity/wijmo.cloud': 'npm:@grapecity/wijmo.cloud/index.js', '@grapecity/wijmo.nav': 'npm:@grapecity/wijmo.nav/index.js', '@grapecity/wijmo.odata': 'npm:@grapecity/wijmo.odata/index.js', '@grapecity/wijmo.olap': 'npm:@grapecity/wijmo.olap/index.js', '@grapecity/wijmo.pdf': 'npm:@grapecity/wijmo.pdf/index.js', '@grapecity/wijmo.viewer': 'npm:@grapecity/wijmo.viewer/index.js', 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"npm:@grapecity/wijmo.react.grid/index.js", "@grapecity/wijmo.react.input": "npm:@grapecity/wijmo.react.input/index.js", "@grapecity/wijmo.react.olap": "npm:@grapecity/wijmo.react.olap/index.js", "@grapecity/wijmo.react.viewer": "npm:@grapecity/wijmo.react.viewer/index.js", "@grapecity/wijmo.react.nav": "npm:@grapecity/wijmo.react.nav/index.js", "@grapecity/wijmo.react.base": "npm:@grapecity/wijmo.react.base/index.js", 'jszip': 'npm:jszip/dist/jszip.js', 'react': 'npm:react/umd/react.production.min.js', 'react-dom': 'npm:react-dom/umd/react-dom.production.min.js', 'redux': 'npm:redux/dist/redux.min.js', 'react-redux': 'npm:react-redux/dist/react-redux.min.js', 'bootstrap.css': 'npm:bootstrap/dist/css/bootstrap.min.css', 'css': 'npm:systemjs-plugin-css/css.js', 'plugin-babel': 'npm:systemjs-plugin-babel/plugin-babel.js', 'systemjs-babel-build':'npm:systemjs-plugin-babel/systemjs-babel-browser.js' }, // packages tells the System loader how to load when no filename and/or no extension packages: { src: { defaultExtension: 'jsx' }, "node_modules": { defaultExtension: 'js' }, } }); })(this);