It is assumed where the matrices G and R are functions of parameters γ and φ, respectively. Y = Xτ + Zu + e.(1) the usual mixed model with, y denotes the n × 1 vector of observations,where τ is the p×1 vector of fixed effects, X is an n×p design matrix of full column rank which associates observations with the appropriate combination of fixed effects, u is the q × 1 vector of random effects, Z is the n × q design matrix which associates observations with the appropriate combination of random effects, and e is the n × 1 vector of residual errors.The model (1) is called a linear mixed model or linear mixed effects model. Mixed model in Asreml- R coding conventions before going into specifics, we might want to have details on asreml-R conventions, for those who are unfamiliar with ASREML codes. ![]() I want to fit mixed model using lme4, nlme, baysian regression package or any available. Package ‘vegan’ JanuTitle Community Ecology Package Version 2.4-6 Date Author Jari Oksanen, F. ![]() ![]() the packages menu from within the R-gui.Quick Install 2 2 Quick Install 1.Download the ASReml-R archive and install as a source package into R using one of:
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