Internal: Classify structural model terms by type
Classify terms of the structural model according to their type.
classifyConstructs(.terms = args_default()$.terms)
A vector of construct names to be classified.
Classification is required to estimate nonlinear structural relationships. Currently the following terms are supported
Two-way interaction, e.g.,
Three-way interaction, e.g.,
Quadratic and two-way interaction, e.g.,
Note that exponential terms are modeled as "interactions with itself"
as in i.e.,
eta1^3 = eta1.eta1.eta1.
A named list of length equal to the number of terms provided containing a data frame with columns "Term_class", "Component", "Component_type", and "Component_freq".