Results 81 to 90 of about 4,106,343 (229)

A general approach to mixed effects modeling of residual variances in generalized linear mixed models

open access: yesGenetics Selection Evolution, 2005
We propose a general Bayesian approach to heteroskedastic error modeling for generalized linear mixed models (GLMM) in which linked functions of conditional means and residual variances are specified as separate linear combinations of fixed and random ...
Kizilkaya Kadir, Tempelman Robert J
doaj   +1 more source

Precise asymptotics for linear mixed models with crossed random effects

open access: yesStatistical Theory and Related Fields
We obtain an asymptotic normality result that reveals the precise asymptotic behaviour of the maximum likelihood estimators of parameters for a very general class of linear mixed models containing cross random effects.
Jiming Jiang   +2 more
doaj   +1 more source

Forecasting interest rates: A Comparative assessment of some second generation non-linear model [PDF]

open access: yes
Modelling and forecasting of interest rates has traditionally proceeded in the framework of linear stationary models such as ARMA and VAR, but only with moderate success.
Dilip M. Nachane, Jose G. Clavel
core  

Application of Mixed Linear Models in the Analysis of Road Surface Features

open access: yesLithuanian Journal of Statistics, 2015
The data were collected by researchers at the Road Research Institute, in a study investigating the impact of differentfactors on road surface strength.
Jurgita Židanavičiūtė   +1 more
doaj   +1 more source

FORECASTING INTEREST RATES - A COMPARATIVE ASSESSMENT OF SOME SECOND GENERATION NON-LINEAR MODELS [PDF]

open access: yes
Modelling and forecasting of interest rates has traditionally proceeded in the framework of linear stationary models such as ARMA and VAR, but only with moderate success.
Dilip M. Nachane, Jose G. Clavel
core   +1 more source

Small area estimation for spatially correlated populations - a comparison of direct and indirect model-based methods [PDF]

open access: yes, 2007
Linear mixed models underpin many small area estimation (SAE) methods. In this paper we investigate SAE based on linear models with spatially correlated small area effects where the neighbourhood structure is described by a contiguity matrix. Such models
Chambers, Ray   +2 more
core   +1 more source

ON THE ESTIMATION AND PREDICTION IN MIXED LINEAR MODELS

open access: yesScientia Agricola, 1998
Beginning with the classical Gauss-Markov Linear Model for mixed effects and using the technique of the Lagrange multipliers to obtain an alternative method for the estimation of linear predictors. A structural method is also discussed in order to obtain
LÓPEZ L.A., IEMMA A.F.
doaj  

Linear Quantile Mixed Models: The lqmm Package for Laplace Quantile Regression

open access: yesJournal of Statistical Software, 2014
Inference in quantile analysis has received considerable attention in the recent years. Linear quantile mixed models (Geraci and Bottai 2014) represent a ?exible statistical tool to analyze data from sampling designs such as multilevel, spatial, panel or
Marco Geraci
doaj   +1 more source

Robust MM-Estimation and Inference in Mixed Linear Models [PDF]

open access: yes
Mixed linear models are used to analyse data in many settings. These models generally rely on the normality assumption and are often fitted by means of the maximum likelihood estimator (MLE) or the restricted maximum likelihood estimator (REML). However,
Samuel Copt, Stephane Heritier
core  

Genome-Wide Association Study Reveals Genetic Mechanisms Underlying Intersex and Aproctia in Large White Pigs

open access: yesAnimals
Congenital developmental abnormalities in piglets, such as intersex and aproctia, adversely affect survival rates, growth performance, and genetic breeding efficiency in pig populations.
Yajun Li   +15 more
doaj   +1 more source

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