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A Multivariate Procedure for Linear Comparisons of Mean Vectors when Residual Covariance and Regression Coefficient Matrices are Unequal
Author(s) -
Msra R. K.
Publication year - 1992
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.4710340702
Subject(s) - statistics , mathematics , multivariate statistics , residual , gadus , covariance , linear regression , general linear model , bayesian multivariate linear regression , fish <actinopterygii> , biology , algorithm , fishery
A multivariate procedure for testing linear comparisons of vectors of adjusted group means of response (dependent) variables when groups differ in residual covariance and regression coefficient matrices is presented. Such disparities have been observed in investigations of trends in contaminant levels in fish. Application of the procedure is illustrated with data on Atlantic cod ( Gadus morhua ). The procedure is quite general and can be employed to test any linear comparisons.