Application of vec and vech Operators to a Multivariate Mixed Sire Model

Authors : M. Ziya FIRAT

Pages : 255-256

View : 7 | Download : 7

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The vec operator of a matrix X consists of stacking columns of X one under another in a single vector. The vech operator of a square matrix X is obtained in the same way that vecX is defined, but it starts each column at its diagonal element. The objec-tive of this paper is to describe vec and vech operators and apply them to a multivariate mixed sire model.
Keywords : Vec and vech operators, mixed sire model