Specification of nesting structure for regression coefficients.
Objects can be created by calls of the form new("FLXnested",
formula, k, ...)
. In addition, named lists can be coerced to
FLXnested
objects, names are completed if unique.
formula
:Object of class "list"
containing the
formula for determining the model matrix for each nested parameter.
k
:Object of class "numeric"
specifying the
number of components in each group.