Variance Components
Likelihood inference for small variance components
... small variance components, methods based on the standard asymptotics are seen to overcover, so that local asymptotic methods offer an improvement in coverage ...
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Comparison of REML and MINQUE for Estimated Variance Components and Predicted Random Effects
... Though LMM approaches are currently widely used, a potential issue associated with LMM is low power in statistical tests for variance components and random effects. With the use of jackknife methods, ...
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VARIANCE COMPONENTS AND SELECTION FOR FEATHER PECKING BEHAVIOR IN LAYING HENS
... The variance components and the actual selection re- sponse together suggest that genetic selection could be a useful tool in minimizing FP behavior in commercial stocks of laying ...
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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 Epistatic Variance Components and Heritability in Founder Populations and Crosses
... variance components. The IBS-based method of estimating the additive variance was compared to an IBD-based approach by Zaitlen et ...additive variance relative to the IBD-based approach by a ...
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Analysis of conditional genetic effects and variance components in developmental genetics.
... (B) Estimates of conditional variance components for final observa- tion means conditional on means at different previous time t VAqf) = conditional additive variance, K[r] ...
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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 ...for variance components is an important problem ...
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Variance components and correlations of female fertility traits in Chinese Holstein population
... the variance components and heritabilities of fertility traits using a multi-trait model and a single- trait model are shown in Table ...of variance components between heifers and ...
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Kriging with Unknown Variance Components for Regional Ionospheric Reconstruction
... We have proposed a Kriging method with unknown variance components to interpolate ionospheric delays for use in real-time. As a result, we are able to correctly determine the weighting factors of ...
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Variance components for susceptibility to Mycobacterium bovis infection in dairy and beef cattle
... genetic variance of susceptibility to bTB in environ- ments with different bTB prevalence levels has not pre- viously been ...genetic variance pattern observed in the present study was in direct contrast to ...
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On The Comparison Of Methods Of Estimating Variance Components: A Case Of Gudali Beef Cattle
... estimating variance components has been, and to a large extent still is, that of equating quadratic functions of the observations to their expected ...
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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] ...
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Estimating Modifying Effect of Age on Genetic and Environmental Variance Components in Twin Models
... the variance components over age. Varying variance of the genetic component over age can imply the existence of gene– environment (G 3 E) interactions that general genome-wide association studies ...
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Estimation of (co) variance components and genetic parameters for growth traits in Arman sheep
... (Co) variance components and genetic parameters for growth traits in Arman sheep were estimated, using data collected during an 11-year period (1999-2010), by applying the restricted max- imum likelihood ...
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Estimation of variance components for carcass and production traits in Guzerat cattle
... of variance components were performed using the Average Information Restricted Maximum Likelihood method (AIREMLF90) and a two-trait animal model to estimate genetic correlations and ...
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Estimates of Variance Components for Gilt Retention Traits.
... animal. Variance components for categorical traits (STAY, CFR and CFO) were estimated using THRGIBBS1F90 (Misztal et al, 2002) as linear models are not ideal for estimating variance components ...
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Maximum likelihood estimation of variance components
... estimating variance components: they are all variations on ANOVA estimates which involve equating various quadratic forms of the observations to their expected values, then solving for the variance ...
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A NOTE ON ESTIMATION OF VARIANCE COMPONENTS BY MAXIMIZATION
... of variance components in the one-way repeated measurements model (one-way- RMM),which contains one within- units factor incorporating one random effects one between- units factor as well as the ...
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Variance Components of Models of Sudoku Square Design
... Variance components are different sources to the variation in an observation and are commonly estimated in the course of determining sampling design, establishing quality control procedure or in statistical ...
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ESTIMATION OF VARIANCE COMPONENTS OF INTERNODE LENGTH IN A CLONED POPULATION OF MIMULUS GUTTATUS
... With respect to the relative usefulness of these analyses, the clonal analysis provides good estimates of the environmental component of variance, the total genetic c[r] ...
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