Application of vec and vech operators to a multivariate mixed sire model


Firat M.

TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES, cilt.22, ss.255-256, 1998 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 22 Konu: 3
  • Basım Tarihi: 1998
  • Dergi Adı: TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
  • Sayfa Sayıları: ss.255-256

Özet

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 objective of this paper is to describe vec and vech operators and apply them to a multivariate mixed sire model.