相关性检测
将两个变量相互对比绘制,无需任何公式计算,即可直观判断正相关、负相关或无相关关系。
免费在线散点图制作工具
散点图通过在两个坐标轴上绘制各个数据点来揭示两个变量之间的关系。每个点代表一次观测——横轴位置表示一个数值,纵轴位置表示另一个数值。当您想了解两个变量是否同向变化、背向而行还是毫无规律时,散点图是理想选择。它尤其擅长呈现表格和汇总数据所掩盖的聚类、趋势与异常值。
将两个变量相互对比绘制,无需任何公式计算,即可直观判断正相关、负相关或无相关关系。
每个数据点始终清晰可见,异常值和极端数据一目了然,不会被平均值所掩盖。
通过调整每个点的大小来编码第三个维度,在需要时将基础散点图转换为气泡图风格。
添加水平或垂直参考线以标记阈值、目标值或平均值,为每个数据点提供有意义的参照背景。
可选择在每个点旁边显示名称或数值,让查看者无需悬停即可识别具体观测项。
为两个坐标轴清晰命名,让受众始终了解每个维度的含义,即使脱离图表也能明白。
两个数值变量之间的相关性分析
数据集中的异常值与离群点检测
含成对测量数据的科研或实验数据
销售业绩与营销投入的对比分析
学生考试成绩与学习时长的关联分析
质量控制:缺陷率与产量之间的关系
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