简单线性回归分析及其应用

Simple linear regression analysis and its application

本文目的是介绍简单线性回归分析的前提条件、种类、实现计算的SAS程序及结果解释,并说明数据是否值得做直线回归分析以及如何选择正确的直线回归分析类型。简单线性回归分析有三种具体情形,分别是:简单直线回归分析、加权直线回归分析和具有重复试验的直线回归分析。进一步通过实例来阐述如何进行不同的简单线性回归分析,并给出实现这些直线回归分析所需要的SAS程序及输出结果。

The aim of this article is to introduce the preconditions,categories,SAS programs and the results interpretation of the simple linear regression analysis to illustrate how to choose the correct regression model and whether the data is worth regression analysis. There are three kinds of simple linear regression analyses: simple linear regression analysis,weighted linear regression analysis and repeated experimental linear regression analysis. The following examples are used to illustrate different simple linear regression analyses and the corresponding SAS programs required to perform these linear regression analyses and their results.