2/26/2023 0 Comments Hw205.02.000 powervu software![]() ![]() ![]() further arguments passed to or from other methods. used only when sparse is TRUE: Should factors have unused levels dropped? (This used to be true, implicitly in the first versions up to July 2010 the default has been changed for compatibility with R's standard (dense) model.matrix(). sparse logical indicating if the result should be sparse (of class sparseModelMatrix), using () (package Matrix). xlev to be used as argument of ame if data has no 'terms' attribute. contrasts.arg A list, whose entries are values (numeric matrices or character strings naming functions) to be used as replacement values for the contrasts replacement function and whose names are the names of columns of data containing factors. If another sort of object, ame is called first. For the default method, a model formula or a terms object. Keywords models Usage Arguments object an object of an appropriate class. ![]() Model.Matrix creates design matrix, very much like the standard R function model.matrix, however returning a dense or sparse object of class modelMatrix. Construct Possibly Sparse Design or Model Matrices ![]()
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