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https://hdl.handle.net/1959.11/4163| Title: | A note on bias in reduced rank estimates of covariance matrices | Contributor(s): | Meyer, Karin (author); Kirkpatrick, Mark (author) | Publication Date: | 2007 | Handle Link: | https://hdl.handle.net/1959.11/4163 | Abstract: | Fitting only the leading principal components allows genetic covariance matrices to be modelled parsimoniously, yielding reduced rank estimates. If principal components with non-zero variances are omitted from the model, genetic variation is moved into the covariance matrices for residuals or other random effects. The resulting bias in estimates of genetic eigen-values and -vectors is examined. | Publication Type: | Conference Publication | Conference Details: | AAABG 2007: 17th Conference of the Association for the Advancement of Animal Breeding and Genetics, Armidale, Australia, 23rd - 26th September, 2007 | Source of Publication: | Proceedings of the Association for the Advancement of Animal Breeding and Genetics, v.17, p. 154-157 | Publisher: | Association for the Advancement of Animal Breeding and Genetics (AAABG) | Place of Publication: | Armidale, Australia | ISSN: | 1328-3227 | Fields of Research (FoR) 2008: | 060412 Quantitative Genetics (incl Disease and Trait Mapping Genetics) | Socio-Economic Objective (SEO) 2008: | 830301 Beef Cattle | Peer Reviewed: | Yes | HERDC Category Description: | E1 Refereed Scholarly Conference Publication | Publisher/associated links: | http://trove.nla.gov.au/work/35062558?selectedversion=NBD42373479 http://www.aaabg.org/livestocklibrary/2007/meyer154.pdf |
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| Appears in Collections: | Animal Genetics and Breeding Unit (AGBU) Conference Publication |
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