数据可视化----ECharts---散点图

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数据可视化----ECharts—散点图（五）

百度百科上散点图的定义

散点图是指在回归分析中，数据点在直角坐标系平面上的分布图，散点图表示因变量随自变量而变化的大致趋势，据此可以选择合适的函数对数据点进行拟合。

散点图的特点

用两组数据构成多个坐标点，考察坐标点的分布，判断两变量之间是否存在某种关联或总结坐标点的分布模式。
散点图将序列显示为一组点。
值由点在图表中的位置表示。
类别由图表中的不同标记表示。
散点图通常用于比较跨类别的聚合数据。

案例说明

我们本次实现一个小案例是我们用一组数据来证明身高和体重的关系，一般情况下身高和体重应当是正相关的，身高越高的人一般情况下，体重也就越大
PS：这里说的是通常情况下，我们不要拿个例来反驳哈

Echarts中如何实现散点图

  1. ECharts最基本的代码结构

引入js文件，DOM容器，初始化对象，设置option

  1. x轴和y轴数据 二维数组

[ [身高,体重],[身高,体重],[身高,体重],… ]
这里我们准备了五百组不同的数据

  1. 将type的值设置为scatter, x轴和y轴的type都是value

注意：这个配置是散点图的关键

  1. 下面让我们来一起实现一下
<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <script src="lib/echarts.min.js"></script>
</head>

<body>
  <div style="width: 600px;height:400px"></div>
  <script>
    //1. ECharts最基本的代码结构
    //2. x轴和y轴数据 二维数组 [ [身高,体重],...   ]
    //3. 将type的值设置为scatter, x轴和y轴的type都是value
    var data = [{ "gender": "female", "height": 161.2, "weight": 51.6 }, { "gender": "female", "height": 167.5, "weight": 59 }, { "gender": "female", "height": 159.5, "weight": 49.2 }, { "gender": "female", "height": 157, "weight": 63 }, { "gender": "female", "height": 155.8, "weight": 53.6 }, { "gender": "female", "height": 170, "weight": 59 }, { "gender": "female", "height": 159.1, "weight": 47.6 }, { "gender": "female", "height": 166, "weight": 69.8 }, { "gender": "female", "height": 176.2, "weight": 66.8 }, { "gender": "female", "height": 160.2, "weight": 75.2 }, { "gender": "female", "height": 172.5, "weight": 55.2 }, { "gender": "female", "height": 170.9, "weight": 54.2 }, { "gender": "female", "height": 172.9, "weight": 62.5 }, { "gender": "female", "height": 153.4, "weight": 42 }, { "gender": "female", "height": 160, "weight": 50 }, { "gender": "female", "height": 147.2, "weight": 49.8 }, { "gender": "female", "height": 168.2, "weight": 49.2 }, { "gender": "female", "height": 175, "weight": 73.2 }, { "gender": "female", "height": 157, "weight": 47.8 }, { "gender": "female", "height": 167.6, "weight": 68.8 }, { "gender": "female", "height": 159.5, "weight": 50.6 }, { "gender": "female", "height": 175, "weight": 82.5 }, { "gender": "female", "height": 166.8, "weight": 57.2 }, { "gender": "female", "height": 176.5, "weight": 87.8 }, { "gender": "female", "height": 170.2, "weight": 72.8 }, { "gender": "female", "height": 174, "weight": 54.5 }, { "gender": "female", "height": 173, "weight": 59.8 }, { "gender": "female", "height": 179.9, "weight": 67.3 }, { "gender": "female", "height": 170.5, "weight": 67.8 }, { "gender": "female", "height": 160, "weight": 47 }, { "gender": "female", "height": 154.4, "weight": 46.2 }, { "gender": "female", "height": 162, "weight": 55 }, { "gender": "female", "height": 176.5, "weight": 83 }, { "gender": "female", "height": 160, "weight": 54.4 }, { "gender": "female", "height": 152, "weight": 45.8 }, { "gender": "female", "height": 162.1, "weight": 53.6 }, { "gender": "female", "height": 170, "weight": 73.2 }, { "gender": "female", "height": 160.2, "weight": 52.1 }, { "gender": "female", "height": 161.3, "weight": 67.9 }, { "gender": "female", "height": 166.4, "weight": 56.6 }, { "gender": "female", "height": 168.9, "weight": 62.3 }, { "gender": "female", "height": 163.8, "weight": 58.5 }, { "gender": "female", "height": 167.6, "weight": 54.5 }, { "gender": "female", "height": 160, "weight": 50.2 }, { "gender": "female", "height": 161.3, "weight": 60.3 }, { "gender": "female", "height": 167.6, "weight": 58.3 }, { "gender": "female", "height": 165.1, "weight": 56.2 }, { "gender": "female", "height": 160, "weight": 50.2 }, { "gender": "female", "height": 170, "weight": 72.9 }, { "gender": "female", "height": 157.5, "weight": 59.8 }, { "gender": "female", "height": 167.6, "weight": 61 }, { "gender": "female", "height": 160.7, "weight": 69.1 }, { "gender": "female", "height": 163.2, "weight": 55.9 }, { "gender": "female", "height": 152.4, "weight": 46.5 }, { "gender": "female", "height": 157.5, "weight": 54.3 }, { "gender": "female", "height": 168.3, "weight": 54.8 }, { "gender": "female", "height": 180.3, "weight": 60.7 }, { "gender": "female", "height": 165.5, "weight": 60 }, { "gender": "female", "height": 165, "weight": 62 }, { "gender": "female", "height": 164.5, "weight": 60.3 }, { "gender": "female", "height": 156, "weight": 52.7 }, { "gender": "female", "height": 160, "weight": 74.3 }, { "gender": "female", "height": 163, "weight": 62 }, { "gender": "female", "height": 165.7, "weight": 73.1 }, { "gender": "female", "height": 161, "weight": 80 }, { "gender": "female", "height": 162, "weight": 54.7 }, { "gender": "female", "height": 166, "weight": 53.2 }, { "gender": "female", "height": 174, "weight": 75.7 }, { "gender": "female", "height": 172.7, "weight": 61.1 }, { "gender": "female", "height": 167.6, "weight": 55.7 }, { "gender": "female", "height": 151.1, "weight": 48.7 }, { "gender": "female", "height": 164.5, "weight": 52.3 }, { "gender": "female", "height": 163.5, "weight": 50 }, { "gender": "female", "height": 152, "weight": 59.3 }, { "gender": "female", "height": 169, "weight": 62.5 }, { "gender": "female", "height": 164, "weight": 55.7 }, { "gender": "female", "height": 161.2, "weight": 54.8 }, { "gender": "female", "height": 155, "weight": 45.9 }, { "gender": "female", "height": 170, "weight": 70.6 }, { "gender": "female", "height": 176.2, "weight": 67.2 }, { "gender": "female", "height": 170, "weight": 69.4 }, { "gender": "female", "height": 162.5, "weight": 58.2 }, { "gender": "female", "height": 170.3, "weight": 64.8 }, { "gender": "female", "height": 164.1, "weight": 71.6 }, { "gender": "female", "height": 169.5, "weight": 52.8 }, { "gender": "female", "height": 163.2, "weight": 59.8 }, { "gender": "female", "height": 154.5, "weight": 49 }, { "gender": "female", "height": 159.8, "weight": 50 }, { "gender": "female", "height": 173.2, "weight": 69.2 }, { "gender": "female", "height": 170, "weight": 55.9 }, { "gender": "female", "height": 161.4, "weight": 63.4 }, { "gender": "female", "height": 169, "weight": 58.2 }, { "gender": "female", "height": 166.2, "weight": 58.6 }, { "gender": "female", "height": 159.4, "weight": 45.7 }, { "gender": "female", "height": 162.5, "weight": 52.2 }, { "gender": "female", "height": 159, "weight": 48.6 }, { "gender": "female", "height": 162.8, "weight"以上是关于数据可视化----ECharts---散点图的主要内容，如果未能解决你的问题，请参考以下文章
 

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