Matlab has an aggregate variable called a structure, which consists of component variables each of which can be of a different data type and dimension. For example, I can have a single structure Model which consists of Model.variable1, Model.variable2, and Model.variable3, where variable1 is a string variable, variable 2 is a 1x24 vector, and variable 3 is a 6x6x6 array. The benefit is that the aggregate variable Model can be passed between programs without having to pass each of the component variables. Does R have anything similar?
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