sommer
Solving Mixed Model Equations in R
Structural multivariate-univariate linear mixed model solver for estimation of multiple random effects with unknown variance-covariance structures (e.g., heterogeneous and unstructured) and known covariance among levels of random effects (e.g., pedigree and genomic relationship matrices) (doi:10.1371/journal.pone.0156744; doi:10.1016/j.ajhg.2014.12.006; Jensen et al., 1997). REML estimates can be obtained using the Direct-Inversion Newton-Raphson and Direct-Inversion Average Information algorithms for the problems r x r (r being the number of records) or using the Henderson-based average information algorithm for the problem c x c (c being the number of coefficients to estimate). Spatial models can also be fitted using the two-dimensional spline functionality available.
- Version4.3.7
- R versionR (≥ 3.5.0)
- LicenseGPL-2
- LicenseGPL-3
- Needs compilation?Yes
- sommer citation info
- Last release02/03/2025
Documentation
- VignetteQuick start for the sommer package
- VignetteMoving to newer versions of sommer
- VignetteQuantitative genetics using the sommer package
- VignetteGxE models in sommer
- Vignettetranslate lme4 to sommer
- VignetteSpatial modeling using the sommer package
- MaterialREADME
- MaterialChangeLog
- In ViewsAgriculture
- In ViewsMixedModels
Team
Giovanny Covarrubias-Pazaran
MaintainerShow author details
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Dependencies
- Depends3 packages
- Imports1 package
- Suggests7 packages
- Linking To3 packages
- Reverse Imports7 packages
- Reverse Suggests2 packages
- Reverse Enhances2 packages