Improving Henderson's Method 3 Approach when Estimating Variance Components in a Two-way Mixed Linear Model

  • Razaw al Sarraj
  • Dietrich von Rosen


A two-way linear mixed model, consisting of three variance components, σ1 2, σ2 2 and σe 2 is considered. The variance component estimators are estimated using a well known non-iterative estimation procedure, Henderson's method 3. for σ2 1 we propose two modified estimators. The modification is carried out by perturbing the standard estimator, such that the obtained estimator is expected to perform better in terms of its mean square error.


Mean Square Error Variance Component Unbiased Estimator Estimate Variance Component Unbalanced Data 
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Copyright information

© Physica-Verlag Heidelberg 2009

Authors and Affiliations

  1. 1.Department of Energy and TechnologyUppsalaSweden

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