Abstract
A strategy of using an average information matrix is shown to be computationally convenient and efficient for estimating variance components by restricted maximum likelihood (REML) in the mixed linear model. Three applications are described. The motivation for the algorithm was the estimation of variance components in the analysis of wheat variety means from 1,071 experiments representing 10 years and 60 locations in New South Wales. We also apply the algorithm to the analysis of designed experiments by incomplete block analysis and spatial analysis of field experiments.
Original language | English |
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Pages (from-to) | 1440-1450 |
Number of pages | 11 |
Journal | Biometrics |
Volume | 51 |
Issue number | 4 |
Publication status | Published - Dec 1995 |
Keywords / Materials (for Non-textual outputs)
- EM algorithm
- spatial analysis
- variance components
- REML
- RESTRICTED MAXIMUM-LIKELIHOOD
- GENERATION VARIETY TRIALS
- SPARSE-MATRIX INVERSION
- FIELD EXPERIMENTS
- COMPONENTS