摘要
回归系数的计算是直线回归的关键一步,而其公式结构复杂,因此掌握其推导过程尤为重要.提出了直线回归中回归系数公式推导的逻辑思路和方法,并提出了教学建议.
The calculation of regression coefficient is the key step of linear regression. However,its formula structure is complex,so it is very important to master the process of derivation. A linear regression coefficient formula is derived and some teaching suggestions are put forward.
出处
《河南教育学院学报（自然科学版）》
2017年第1期62-63,79,共3页
Journal of Henan Institute of Education(Natural Science Edition)
基金
河南农业大学高等教育科学研究课题(20160308)
关键词
直线回归
回归系数公式
回归截距
乘积和
离均差平方和
推导过程
linear regression
regression coefficient formula
regression intercept
sum of products
sum of squares of mean deviation
derivation process
