ESTIMATING VARIANCES AND COVARIANCES FOR BIVARIATE ANIMAL-MODELS USING SCALING AND TRANSFORMATION

Authors
THOMPSON R CRUMP RE JUGA J VISSCHER PM
Citation
R. Thompson et al., ESTIMATING VARIANCES AND COVARIANCES FOR BIVARIATE ANIMAL-MODELS USING SCALING AND TRANSFORMATION, Genetics selection evolution, 27(1), 1995, pp. 33-42
Citations number
18
Categorie Soggetti
Agriculture Dairy & AnumalScience","Genetics & Heredity
Journal title
Genetics selection evolution → ACNP
ISSN journal
0999193X
Volume
27
Issue
1
Year of publication
1995
Pages
33 - 42
Database
ISI
SICI code
0999-193X(1995)27:1<33:EVACFB>2.0.ZU;2-C
Abstract
The estimation of genetic parameters in bivariate animal models is con sidered. It is shown that in a variety of models the computation can b e reduced by introducing scaled and transformed independent traits. Th is allows maximization over smaller dimensions of parameter space. In 1 numerical example the procedure reduced the computation by a factor of 8. The advantages of transformed models are outlined.