ECharts Funnel Chart: How to Show Data Flow-JS Tutorial-php.cn

ECharts Funnel Chart: How to Show Data Flow

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Release： 2023-12-18 14:37:06

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ECharts Funnel Chart: How to Show Data Flow

ECharts Funnel Chart: How to show the data process, specific code examples are needed

Introduction

With the era of big data Coming, data analysis and data visualization are becoming more and more important. In the process of data analysis, it is very critical to understand the process and transformation of data. ECharts is a powerful data visualization library that can help us visually display data processes. This article will focus on the Funnel Chart in ECharts and demonstrate how to use ECharts to display the data flow.

Characteristics of the funnel chart

The funnel chart is a special column chart that uses a funnel-shaped graphic to display the flow and transformation of data. The characteristics of the funnel chart are as follows:

is suitable for displaying staged data processes, such as the conversion process in the sales channel, user behavior in the website access log, etc.
The data gradually decreases from top to bottom, forming a funnel shape, which can visually reflect changes in conversion rate.
You can use different colors of funnel blocks to represent different stages to improve readability.

Use ECharts to draw a funnel chart

Below we use ECharts to draw a simple funnel chart example. Suppose we have data on a sales channel with three steps: total visits, shopping cart additions, and successful purchases.

First, we need to introduce the ECharts library file into HTML and create a DIV container with a certain width and height to display the chart.

<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>ECharts漏斗图示例</title>
    <!-- 引入ECharts库文件 -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/echarts/4.9.0/echarts.min.js"></script>
</head>
<body>
    <!-- 创建一个具备一定宽度和高度的DIV容器 -->
    <div id="funnelChart" style="width: 600px; height: 400px;"></div>
</body>
</html>

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Next, use ECharts’ API in JavaScript to draw the funnel chart.

// 使用ECharts的API绘制漏斗图
var chartDom = document.getElementById('funnelChart');
var myChart = echarts.init(chartDom);

var option;

// 指定漏斗图的配置项和数据
option = {
    title: {
        text: '销售渠道转化漏斗图',
        subtext: '示例数据'
    },
    tooltip: {
        trigger: 'item',
        formatter: "{a} <br/>{b} : {c}"
    },
    toolbox: {
        feature: {
            dataView: {readOnly: false},
            restore: {},
            saveAsImage: {}
        }
    },
    legend: {
        data: ['总访问量', '添加购物车量', '成功购买量']
    },
    series: [
        {
            name: '转化率',
            type: 'funnel',
            left: '10%',
            top: 60,
            // 指定各个阶段的具体数值
            data: [
                {value: 1000, name: '总访问量'},
                {value: 800, name: '添加购物车量'},
                {value: 500, name: '成功购买量'}
            ],
            // 设置漏斗图的属性
            itemStyle: {
                borderWidth: 1,
                borderColor: '#fff'
            },
            // 指定漏斗图的标签样式
            label: {
                position: 'inside',
                formatter: '{c}'
            }
        }
    ]
};

// 使用刚指定的配置项和数据显示图表
option && myChart.setOption(option);

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In the above code, we use ECharts API to create a funnel chart, specifying the values and corresponding labels for each stage. By setting the properties and label styles of the funnel chart, we can get better visualization of the funnel chart. Finally, use the setOption method to apply the configuration items and data to the chart to display the chart.

Summary

ECharts is a powerful data visualization library that can help us visually display data processes and transformations. This article focuses on the characteristics of the funnel chart in ECharts, how to draw the funnel chart, and provides specific code examples. Through learning and practice, we can better use ECharts to display the data process during the data analysis process and improve the efficiency and accuracy of data analysis.

(Note: The above code example uses ECharts version 4.9.0. If you need to use other versions, you can adjust it according to the actual situation.)

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