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On the Detection of Unusual Points in Regression
Author(s) -
Paul S. R.
Publication year - 1987
Publication title -
biometrical journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.108
H-Index - 63
eISSN - 1521-4036
pISSN - 0323-3847
DOI - 10.1002/bimj.4710290206
Subject(s) - mathematics , studentized range , studentized residual , diagonal , regression , statistics , simple (philosophy) , regression analysis , matrix (chemical analysis) , standard error , geometry , chromatography , philosophy , epistemology , chemistry
Some procedures, based on studentized residuals and the diagonal elements of the ‘hat’ matrix, for the detection of unusual points in regression are discussed. These procedures are quite simple but effective to uncover unusual structure of the data. Some examples are given.