天气预报 > 其他 > 回归分析的散点图怎么看啊
回归分析的散点图怎么看啊
更新时间: 2020-06-28 00:00:00  

散点图表示因变量随自变量而变化的大致趋势,散点图中包含的数据越多,得出的效果越好;在散点图中,随着横坐标逐渐的增大,看纵坐标是否也呈增大的趋势,如果是两者就成正相关,如果不是并且相反就成负相关;若在途中散点比较散乱,则两者无明显关系;若图中散点的排列在一条直线上,则它们线性相关,反之则不相关。

关键词: 回归 分析 怎么

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