移动平均值

MovingAverage类扩展了常规Series类,以提供完整数据集的不同子集的一系列平均值。

要将移动平均值添加到图表,请按照下列步骤操作:

  1. 创建一个或多个MovingAverage系列,
  2. 像常规系列一样配置MovingAverage系列,设置绑定chartTypestyle 属性,例如,
  3. 设置MovingAverage的 类型期间 属性,以确定要创建的移动平均线的类型。
import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import * as wjChart from '@grapecity/wijmo.chart'; import * as wjChartAnalytics from '@grapecity/wijmo.chart.analytics'; import * as wjInput from '@grapecity/wijmo.input'; import { getData } from './data'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // create the chart let theChart = new wjChart.FlexChart('#theChart', { itemsSource: getData(), bindingX: 'date', chartType: 'Line', axisY: { min: 0 }, series: [ { name: 'Sales', binding: 'sales' } ] }); // // create a MovingAverage and add it to the Chart series collection let movingAvg = new wjChartAnalytics.MovingAverage(); movingAvg.name = 'Moving Average'; movingAvg.itemsSource = theChart.itemsSource; movingAvg.binding = 'sales'; movingAvg.period = 6; movingAvg.style = { stroke: 'darkred', strokeWidth: 3 }; theChart.series.push(movingAvg); // // select moving average period let period = new wjInput.InputNumber('#period', { value: movingAvg.period, step: 1, min: 2, max: 20, valueChanged: (s) => { if (s.value >= s.min && s.value <= s.max) { movingAvg.period = s.value; } } }); // // select moving average type let type = new wjInput.ComboBox('#type', { itemsSource: 'Simple,Weighted,Exponential,Triangular'.split(','), textChanged: (s) => movingAvg.type = s.text }); } <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexChart Moving Average</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 class="container-fluid"> <label for="type">MovingAverage Type: </label> <div id="type"></div> <label for="period">Period: </label> <div id="period"></div> <div id="theChart"></div> </div> </body> </html> import * as wjCore from '@grapecity/wijmo'; // // generate some random data export function getData() { let arr = [], today = new Date(), sales = 1000; // for (let i = 100; i >= 0; i--) { arr.push({ date: wjCore.DateTime.addDays(today, -i), sales: sales }); // sales += Math.round(Math.random() * 300 - 130); } // return arr; } .wj-flexchart { height: 250px; margin: 10px 0; } .wj-combobox, .wj-inputnumber { width: 120px; margin-right: 12px; } body { margin-bottom: 24pt; } import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; // import { Component, Inject, enableProdMode, NgModule } from '@angular/core'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { BrowserModule } from '@angular/platform-browser'; import { WjInputModule } from '@grapecity/wijmo.angular2.input'; import { WjChartModule } from '@grapecity/wijmo.angular2.chart'; import { WjChartAnalyticsModule } from '@grapecity/wijmo.angular2.chart.analytics'; import { DataService } from './app.data'; // @Component({ selector: 'app-component', templateUrl: 'src/app.component.html' }) export class AppComponent { data: any[]; typeData: any[]; type: string; period: number; // constructor(@Inject(DataService) private dataService: DataService) { this.data = dataService.getData(); this.typeData = dataService.getTypeData(); this.type = 'Simple'; this.period = 6; } } // @NgModule({ imports: [WjInputModule, WjChartModule, WjChartAnalyticsModule, BrowserModule], declarations: [AppComponent], providers: [DataService], bootstrap: [AppComponent] }) export class AppModule { } // enableProdMode(); // Bootstrap application with hash style navigation and global services. platformBrowserDynamic().bootstrapModule(AppModule); <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexChart Moving Average</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- Polyfills --> <script src="node_modules/core-js/client/shim.min.js"></script> <script src="node_modules/zone.js/dist/zone.min.js"></script> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.js"></script> <script src="systemjs.config.js"></script> <script> // workaround to load 'rxjs/operators' from the rxjs bundle System.import('rxjs').then(function (m) { System.set(SystemJS.resolveSync('rxjs/operators'), System.newModule(m.operators)); System.import('./src/app.component'); }); </script> </head> <body> <app-component></app-component> </body> </html> <div class="container-fluid"> <div class="form-group"> <label>MovingAverage Type: </label> <wj-combo-box [(text)]="type" [itemsSource]="typeData"></wj-combo-box> <label>Period: </label> <wj-input-number [(value)]="period" [step]="1" [min]="2" [max]="20"></wj-input-number> <wj-flex-chart [itemsSource]="data" bindingX="date" chartType="Line"> <wj-flex-chart-axis wjProperty="axisY" [min]="0"></wj-flex-chart-axis> <wj-flex-chart-series name="Sales" binding="sales"></wj-flex-chart-series> <wj-flex-chart-moving-average name="Moving Average" [itemsSource]="data" binding="sales" [period]="period" [style]="{stroke:'darkred', strokeWidth: 3}" [type]="type"></wj-flex-chart-moving-average> </wj-flex-chart> </div> </div> import { Injectable } from '@angular/core'; import * as wjCore from '@grapecity/wijmo'; // @Injectable() export class DataService { getData() { let arr = [], today = new Date(), sales = 1000; // for (let i = 100; i >= 0; i--) { arr.push({ date: wjCore.DateTime.addDays(today, -i), sales: sales }); // sales += Math.round(Math.random() * 300 - 130); } // return arr; } // getTypeData() { return 'Simple,Weighted,Exponential,Triangular'.split(','); } } .wj-flexchart { height: 250px; margin: 10px 0; } .wj-combobox, .wj-inputnumber { width: 120px; margin-right: 12px; } body { margin-bottom: 24pt; } <template> <div class="container-fluid"> <div class="form-group"> <label>MovingAverage Type: </label> <wj-combo-box :text="type" :itemsSource="typeData" :textChanged="typeChanged"></wj-combo-box> <label>Period: </label> <wj-input-number :value="period" :step="1" :min="2" :max="20" :valueChanged="periodChanged"></wj-input-number> <wj-flex-chart :itemsSource="data" bindingX="date" chartType="Line"> <wj-flex-chart-axis wjProperty="axisY" :min="0"></wj-flex-chart-axis> <wj-flex-chart-series name="Sales" binding="sales"></wj-flex-chart-series> <wj-flex-chart-moving-average name="Moving Average" :itemsSource="data" binding="sales" :period="period" :style="{stroke:'darkred', strokeWidth: 3}" :type="type"></wj-flex-chart-moving-average> </wj-flex-chart> </div> </div> </template> <script> import "@grapecity/wijmo.styles/wijmo.css"; import 'bootstrap.css'; import Vue from 'vue'; import '@grapecity/wijmo.vue2.core'; import '@grapecity/wijmo.vue2.input'; import '@grapecity/wijmo.vue2.chart'; import '@grapecity/wijmo.vue2.chart.analytics'; import { getData } from './data'; let App = Vue.extend({ name: 'app', data: function () { return { data: getData(), typeData: 'Simple,Weighted,Exponential,Triangular'.split(','), type: 'Simple', period: 6 } }, methods: { typeChanged: function(combo) { this.type = combo.text }, periodChanged: function(input) { if(input.value < input.min || input.value > input.max) { return; } this.period = input.value; } } }) new Vue({ render: h => h(App) }).$mount('#app'); </script> <style> body { margin-bottom: 24px; } label { margin-right: 3px; } </style> <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexChart Moving Average</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.vue'); </script> </head> <body> <div id="app"></div> </body> </html> export function getData() { let arr = [], today = new Date(), sales = 1000; // for (let i = 100; i >= 0; i--) { arr.push({ date: wijmo.DateTime.addDays(today, -i), sales: sales }); // sales += Math.round(Math.random() * 300 - 130); } // return arr; } import "@grapecity/wijmo.styles/wijmo.css"; import "bootstrap.css"; import "./app.css"; // import * as React from 'react'; import * as ReactDOM from 'react-dom'; import * as wjChart from "@grapecity/wijmo.react.chart"; import * as wjChartAnalysis from "@grapecity/wijmo.react.chart.analytics"; import * as wjInput from "@grapecity/wijmo.react.input"; import { getData } from "./data"; class App extends React.Component { constructor(props) { super(props); this.state = { data: getData(), typeData: 'Simple,Weighted,Exponential,Triangular'.split(','), type: 'Simple', period: 6 }; } render() { return <div className="container-fluid"> <div className="form-group"> <label>MovingAverage Type: </label> <wjInput.ComboBox text={this.state.type} itemsSource={this.state.typeData} textChanged={this.typeChanged.bind(this)}></wjInput.ComboBox> <label>Period: </label> <wjInput.InputNumber value={this.state.period} step={1} min={2} max={20} valueChanged={this.periodChanged.bind(this)}></wjInput.InputNumber> <wjChart.FlexChart itemsSource={this.state.data} bindingX="date" chartType="Line"> <wjChart.FlexChartAxis wjProperty="axisY" min={0}></wjChart.FlexChartAxis> <wjChart.FlexChartSeries name="Sales" binding="sales"></wjChart.FlexChartSeries> <wjChartAnalysis.FlexChartMovingAverage name="Moving Average" itemsSource={this.state.data} binding="sales" period={this.state.period} style={{ stroke: 'darkred', strokeWidth: 3 }} type={this.state.type}></wjChartAnalysis.FlexChartMovingAverage> </wjChart.FlexChart> </div> </div>; } typeChanged(combo) { this.setState({ type: combo.text }); } periodChanged(input) { if (input.value < input.min || input.value > input.max) { return; } this.setState({ period: input.value }); } } 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 OLAP Pivot Chart Overview</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> body { margin-bottom: 24px; } label { margin-right: 3px; } import * as wjCore from "@grapecity/wijmo"; export function getData() { let arr = [], today = new Date(), sales = 1000; // for (let i = 100; i >= 0; i--) { arr.push({ date: wjCore.DateTime.addDays(today, -i), sales: sales }); // sales += Math.round(Math.random() * 300 - 130); } // return arr; }