Author/Authors
ACARLAR, Irmak Gazi Üniversitesi - Fen Edebiyat Fakültesi - İstatistik Bölümü, Türkiye
Title Of Article
COMPARISON OF DIAGNOSTIC METHODS FOR DETECTING AN INFLUENTIAL OBSERVATION IN REGRESSION
شماره ركورد
41847
Abstract
An influential observation and influential sets would cause noticeable differentiations on the fitted values in regression. Since these differentiations decrease explicable of model, detecting the influential observation or the influential sets in data is important for efficiency of regression analysis. In this study DFFITS, DFBETAS, COVRATIO, Cook Distance, S statistics and graphical technique used for detecting an influential observation are examined. These methods are compared with regard to ratios of detecting influential observation in data which includes an influential observation.
From Page
105
NaturalLanguageKeyword
Influential observation , Diagnostics , Diagnostic graphs , Simulation.
JournalTitle
Eskişehir Technical University Journal of Science and Technology B - Theoretical Sciences
To Page
116
JournalTitle
Eskişehir Technical University Journal of Science and Technology B - Theoretical Sciences
Link To Document