- Turkish Journal of Veterinary and Animal Sciences
- Vol: 22 Issue: 3
- Application of vec and vech Operators to a Multivariate Mixed Sire Model
Application of vec and vech Operators to a Multivariate Mixed Sire Model
Authors : M. Ziya Firat
Pages : 255-256
View : 5 | Download : 2
Publication Date : 9999-12-31
Article Type : Makaleler
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