JOURNAL BROWSE
Search
Advanced SearchSearch Tips
A Study on Detection of Influential Observations on A Subset of Regression Parameters in Multiple Regression
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
A Study on Detection of Influential Observations on A Subset of Regression Parameters in Multiple Regression
Park, Sung Hyun; Oh, Jin Ho;
  PDF(new window)
 Abstract
Various diagnostic techniques for identifying influential observations are mostly based on the deletion of a single observation. While such techniques can satisfactorily identify influential observations in many cases, they will not always be successful because of some mask effect. It is necessary, therefore, to develop techniques that examine the potentially influential effects of a subset of observations. The partial regression plots can be used to examine an influential observation for a single parameter in multiple linear regression. However, it is often desirable to detect influential observations for a subset of regression parameters when interest centers on a selected subset of independent variables. Thus, we propose a diagnostic measure which deals with detecting influential observations on a subset of regression parameters. In this paper, we propose a measure M, which can be effectively used for the detection of influential observations on a subset of regression parameters in multiple linear regression. An illustrated example is given to show how we can use the new measure M to identify influential observations on a subset of regression parameters.
 Keywords
Influential observation;Mask effect;Partial regression plots;
 Language
English
 Cited by
 References
1.
Regression Diagnostics: Identifying Influential Data and Sources of Collinearity, 1980.

2.
Technical Report 300, 1977.

3.
Technometrics, 2000. vol.42. 1, pp.65-68 crossref(new window)

4.
Residual and Influence in Regression, 1982.

5.
Technometrics, 1977. vol.19. pp.15-18 crossref(new window)

6.
Technometrics, 1980. vol.22. pp.495-508 crossref(new window)

7.
Computer Analysis of Multifactor Data, 1971.

8.
Journal of the KSQC, 1988. vol.16. 2, pp.18-33

9.
Detection of an influential observation on a subset of regression parameters in multiple regression, 1987. vol.17. 1, pp.11-19

10.
Journal of Statistical Planning and Inference, 1979. vol.3. pp.1-17 crossref(new window)