11/30/2022 0 Comments Asreml rInstalling the package From a repository using drat The vignettes can be accessed via vignette(name, package = "asremlPlus"), where name is one of "Wheat.analysis", "Criteria", "Ladybird.asreml" or "Ladybird.lm". Two further vignettes show how to use asremlPlus for exploring and presenting predictions from a linear mixed model analysis in the context of a three-factor factorial experiment on ladybirds: one vignette, Ladybird.asreml vignette, uses asreml and asremlPlus to produce and present predictions the other vignette, Ladybird.lm vignette, uses lm to produce the predictions and asremlPlus to present the predictions. A second vignette is the Criteria vignette that illustrates the facilities in asremlPlus for producing and using information criteria. It that shows how to select the terms to be included in a mixed model for an experiment that involves spatial variation it also illustrates diagnostic checking and prediction production and presentation for this example. In particular, an example of its use is given towards the bottom of the help information and this is avalable as the Wheat.analysis vignette. More informationįor more information install the package and run the R command news(package = “asremlPlus”) or consult the manual.Īn overview can be obtained using ?asremlPlus. In particular, most functions are S3 methods and so the type of the object can be omitted from the function name when calling the function. Versions 4.x-xx of asremlPlus are a major revamp of the package and include substantial syntax changes. This version is compatible with both ASReml-R versions 3 and 4.1, but not 4.0. AsremlPlus is an R package that augments the use of ASReml-R in fitting mixed models and packages generally in exploring prediction differences.
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