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1、回归分析的基本概念 在人类的生产斗争与科学实验中,人类必须接触、收集、研究各种变量,一些变量总是相互联系、相互依存的,它们之间必定存在着某种关系。回归分析就是处理变量之间相互关系的一种数理统计方法。 1.1、变量间的关系 通过大量的实践及研究,人们发现变量之间的关系可以分成两种类型: 1.1.1、函数关系 在许多物理现象和化学现象中,有许多
1. Basic Concepts of Regression Analysis In human struggle for production and scientific experiments, human beings must contact, collect and study various variables. Some variables are always interdependent and interdependent, and there must be some relationship between them. Regression analysis is a mathematical statistical method that deals with the interrelationship between variables. 1.1 The relationship between variables Through a lot of practice and research, people found that the relationship between variables can be divided into two types: 1.1.1, the functional relationship Many physical phenomena and chemical phenomena, many