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回归分析简单的说,就是处理变量与变量之间关系的一种数学方法,也可以说是一种处理变量间相互关系的一种数理方法.回归分析主要解决以下问题:(1)确定二个或二个以上的特定的变量之间关系的形式,找出它们之间定量的表达式,确定它们相互关系的相关程度.(2)根据一个或几个变量的值,预测或控制另一个变量的取值,以及了解这种预测或控制可达到什么样精确度.(3)进行因素分析,确定主次,找出它们之间的关系.
Regression analysis is simply a mathematical method that deals with the relationship between variables and variables. It can also be a mathematical method that deals with the interrelationships between variables. Regression analysis mainly solves the following problems: (1) Determine two Or the relationship between two or more specific variables in the form of a relationship, to find out the quantitative expressions between them, to determine the degree of correlation between them. (2) According to the value of one or more variables, to predict or control another variable The value of, and understand the accuracy of this prediction or control can be achieved. (3) Conduct factor analysis, determine the primary and secondary, and find out the relationship between them.