1、武漢科技大學碩士學位論文線性回歸診斷若干問題研究姓名：胡章剛申請學位級別：碩士專業(yè)：概率論與數(shù)理統(tǒng)計指導教師：李立清2010-11-01武漢科技大學 武漢科技大學 碩士學位論文 第 II 頁 Abstract In this paper, we study the diagnosis of related linear regression method, the residual assumptions

2、 of statistical data analysis, variance stabilization transformation, the variance is to examine the state of the transform model is reasonable through, then we study the relevant statistic such

3、 as Cook statistic, WK Statistics, AP Statistics to explore the influence function, especially the study of the various Cook statistic values influence the selection of the model, we also disc

4、ussed in the deleted data multiple regression effect size on the measurement problem. Finally, we study the outliers in the model to improve the model. We study two problems of regression dia

5、gnosis. First, we study the rationality of the model. If the model is unreasonable, we must improve the model to achieve our target. This paper is divided into three parts, the first part i

6、ntroduces the background; the second part examine whether the model reasonably, including chapters II and III. The third part research the problem of data fix, including chapters IV and V. The