Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/14324
Title: Sampling Based Approximation of Confidence Intervals for Functions of Genetic Covariance Matrices
Contributor(s): Meyer, Karin  (author); Houle, David (author)
Publication Date: 2013
Handle Link: https://hdl.handle.net/1959.11/14324
Abstract: Approximate lower bound sampling errors of maximum likelihood estimates of covariance components and their linear functions can be obtained from the inverse of the information matrix. For non-linear functions, sampling variances are commonly determined as the variance of their first order Taylor series expansions. This is used to obtain sampling errors for estimates of heritabilities and correlations, and these quantities can be computed with most software performing such analyses. In other instances, however, more complicated functions are of interest or the linear approximation is difficult or inadequate. A pragmatic alternative then is to evaluate sampling characteristics by repeated sampling of parameters from their asymptotic, multivariate normal distribution, calculating the function(s) of interest for each sample and inspecting the distribution across replicates. This paper demonstrates the use of this approach and examines the quality of approximation obtained.
Publication Type: Conference Publication
Conference Name: 20th Conference of the Association for the Advancement of Animal Breeding and Genetics: Translating Science into Action, Napier, New Zealand, 20th - 23rd October, 2013
Conference Details: 20th Conference of the Association for the Advancement of Animal Breeding and Genetics: Translating Science into Action, Napier, New Zealand, 20th - 23rd October, 2013
Source of Publication: Proceedings of the Twentieth Conference of the Association for the Advancement of Animal Breeding and Genetics, p. 523-526
Publisher: AAABG: Association for the Advancement of Animal Breeding and Genetics
Place of Publication: Palmerston North, New Zealand
Field of Research (FOR): 060499 Genetics not elsewhere classified
Peer Reviewed: Yes
HERDC Category Description: E1 Refereed Scholarly Conference Publication
Other Links: http://www.aaabg.org/aaabghome/proceedings20.php
Series Name: Proceedings of the AAABG ... Conference
Series Number : 20
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Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
Conference Publication

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