一直不知道为社么叫“回归分析”,这个Regression和统计有啥关系,今天看wiki的解释之后,豁然开朗:
详见:
The term "regression" was coined by , a cousin of ,
in the nineteenth century to describe a biological phenomenon. The
phenomenon was that the heights of descendants of tall ancestors tend
to regress down towards a normal average.
翻译:这一现象是,高度高的祖先的后代往往倒退了向正常的平均水平。
“回到正常值”正是说明了自变量(independent variable )和因变量(dependent variable )之间的关系。
故regression在统计中得名。
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