CAJ | 학술논문

论文主要对回归元的边际贡献进行了研究分析，首先具体详细地阐述了边际贡献的概念，然后简要地介绍了方差分析方法，紧接着选取世界上66个国家的儿童死亡率、成年女性识字率和人均国民收入三个因素的数据，通过这样一个实例从方差分析的视角对回归元的边际贡献进行了具体分析。通过单因素分析、双因素分析并利用F检验分析法，得出结论：只要新增加的回归元能增加调整后的拟合优度值，且在统计上是高度显著的，即使调整后的拟合优度值稍微低点也应该把它保留在模型当中。
논문주요대회귀원적변제공헌진행료연구분석，수선구체상세지천술료변제공헌적개념，연후간요지개소료방차분석방법，긴접착선취세계상66개국가적인동사망솔、성년녀성식자솔화인균국민수입삼개인소적수거，통과저양일개실례종방차분석적시각대회귀원적변제공헌진행료구체분석。통과단인소분석、쌍인소분석병이용F검험분석법，득출결론：지요신증가적회귀원능증가조정후적의합우도치，차재통계상시고도현저적，즉사조정후적의합우도치초미저점야응해파타보류재모형당중。
This paper studies and analyzes the marginal contribution of the regressor.At the first, the article illus-trates the concept of marginal contribution in detail and introduces briefly the analysis of variance, and then the ar-ticle selects the data of three factors such as the children mortality, the adult female literacy rate and pgnp from 66 countries in the world.At last this paper analyzes specially the marginal contribution of regressor through an exam-ple from the perspective of variance analysis.By using the single factor analysis, double factor analysis and the F-test analysis, the article draws the following conclusion: it should also retain the new regressor in the model even when the adjusted goodness of fit values is a little low, as long as the new regressor could improve the adjusted goodness of fit values and it is highly significant in statistics.