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

Firat M. Z.

TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES, cilt.22, sa.3, ss.255-256, 1998 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 22 Sayı: 3
  • Basım Tarihi: 1998
  • Dergi Adı: TURKISH JOURNAL OF VETERINARY & ANIMAL SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.255-256
  • Anahtar Kelimeler: vec and vech operators, mixed sire model
  • Akdeniz Üniversitesi Adresli: Hayır

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.

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.