components-of-variance model
Estimability of variance components when all model matrices commute
... of variance components in mixed models when all model matrices ...possible variance-covariance matrices forms an orthogonal block structure, then there are the same number of variance ...
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Estimation of variance components for carcass and production traits in Guzerat cattle
... Heritability estimates found in our study for REA, BFT and RFT (0.29 and 0.10, 0.19, respectively) were lower than those found by Neto et al. (2009) (0.34, 0.32, 0.10, respectively) and by Guidolin (2010) (0.48, 0.32 and ...
9
Variance Components of Models of Sudoku Square Design
... called variance components of Sudoku square design model Type ...the variance components of the Sudoku square design model Type I begins by taking the expectation of mean sum of ...
8
Methods of accounting for maternal effects in the estimation and prediction of genetic parameters : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy at Massey University
... estimating variance components have desirable ...estimating variance components from unbalanced data is ...of variance components in a maternal effects model are derived ...
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Analysis of incomplete longitudinal binary responses with Bayesian method
... Longitudinal study plays an important role in the epidemiological, clinical, and social science studies. In these kinds of studies, every individual is observed frequently during a period of time. The statistical ...
5
EFFECTS OF A TIME-DEPENDENT MODEL OF GENOTYPIC VALUE ON THE COVARIANCE BETWEEN RELATIVES, VARIANCE COMPONENTS AND ESTIMATES OF HERITABILITY
... The following observa- tions are of interest: ( 1 ) the total genotypic variance and its components are a function of developmental time, ( 2 ) the derivative of each o[r] ...
9
Age-Specific Patterns of Genetic Variance in Drosophila melanogaster. II. Fecundity and Its Genetic Covariance With Age-Specific Mortality
... We designed the present study to test the mutation accumulation model by estimating age-specific genetic variance components for fecundity, and to test the an- tagonistic [r] ...
10
VARIANCE COMPONENTS AND SELECTION FOR FEATHER PECKING BEHAVIOR IN LAYING HENS
... the model is correct (Sorensen and Kennedy, ...animal model. Genetic parameters are usually estimated by a linear model in which the dependent variables and the random effects are assumed to be ...
8
A NOTE ON ESTIMATION OF VARIANCE COMPONENTS BY MAXIMIZATION
... measurements model[6]. In this paper,we study the estimation of variance components in the one-way repeated measurements model (one-way- RMM),which contains one within- units factor ...
10
Estimation of additive and dominance variance for litter size components in rabbits
... single-trait models close to unity for NBA, NBD, and TNB. Similarly, Gallardo et al. (2010) observed that the estimated breeding values of harvest body weight in Coho salmon showed correlation close to unity when the ...
8
Estimation of Epistatic Variance Components and Heritability in Founder Populations and Crosses
... the variance they contribute in aggregate. The evolutionary model of a phenotype depends on the partition of its genetic variance into additive and non- additive ...the variance from pairwise ...
32
On the specification of prior distributions for variance components in disease mapping models
... the variance components in the Bayesian analysis of the Besag-York-Molli´e model, a model that is popular among epidemiologists for disease ...The model encompasses two sets of random ...
19
Estimates of Variance Components for Gilt Retention Traits.
... estimate variance components among traits of importance to gilt retention in modern swine ...(CFO). Variance components were calculated using an animal model with THRGIBBS1F90 for ...
87
Kriging with Unknown Variance Components for Regional Ionospheric Reconstruction
... This paper is organized as follows. In Section 2, we will briefly outline ordinary Kriging algorithms and semivariogram for the construction of signal stochastics. In Section 3, we will theoretically extend Kriging ...
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Maximum likelihood estimation of variance components
... the variance components model can be used to describe data arising in fields as diverse as designed experiments in agriculture and observational studies in the social ...of variance ...
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Likelihood inference for small variance components
... log-likelihood. There has been some recent work on the problem of testing hy- potheses about the fixed effect parameters α when the variance components have been estimated by REML (cf., e.g., Richardson & ...
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Analysis of cellulose microfibril angle using a linear mixed model in Pinus taeda clones
... mixed model was used to explain MFA variation in young loblolly pine ...ual variance–covariance ...observed variance into environmental and genetic ...
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Genetic variation in prostaglandin E2 synthesis and signaling, prostaglandin dehydrogenase, and the risk of colorectal adenoma.
... b Number of principal components that explain ≥80% of the variance in polyp risk c Likelihood ratio test comparing a model with principle components + age and sex to a model containi[r] ...
11
Estimation of ratios of variance components in the unbalanced one way random effects model
... The point estimation of the ratio of variance components and the intraclass correlation coefficient for the unbalanced one way random ef- fects model are considered.. ANOVA, REML, ML, MI[r] ...
25
The estimation of genetic parameters for categorical traits : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Animal Science at Massey University
... model s programme which h a s been d eveloped progress ive l y s ince 1 970 within the B i ometr ical Branch of the New South Wales Depar tment of Agr icul ture . It has been expand ed at Ma s sey Univ er s i ty ...
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