"restrictions.factanal" are handled by methods that are
analagous to the algorithm in factanal. Objects
of class "restrictions.orthonormal" are handled by methods that
estimate an exploratory factor analysis model with orthogonal factors
and zeros in the upper triangle of the coefficient matrix. Objects of
class "restrictions.1storder", "restrictions.general", and
"restrictions.2ndorder" are handled by methods that respecitvely
estimate semi-exploratory or confirmatory models for a single equation model
with correlated factors, a model with a general second-order factor
and a model with multiple correlated second-order factors.new("restrictions", ...).
However, it is not recommended to do so in normal usage. make_restrictions provides a constructor that
reacts to the responses the user gives to the pop-up menus, but it too
would rarely need to be called explicitly since it is called internally by
Factanal when the restrictions argument to Factanal is unspecified. There are several examples of manual
creation of objects of class "restrictions" in the tests.R file in the FAiR/tests subdirectory and in the examples for Factanal.Rd in the FAiR/man subdirectory."restrictions" acts as
a vessel that contains matrices and necessary information to estimate
the corresponding model. The par argument to the methods for
fitS4-methods, bfgs_fitS4-methods, and
gr_fitS4-methods fills the free elements of the
appropriate matrix and then the appropriate functions are evaluated in search
of the optimal parameters that satisfy the constraints. For more details, see
the Classes.R and S4methods.R files in the FAiR/R subdirectory.Factanal and S4GenericsFAiRshowClass("restrictions")
showClass("restrictions.orthonormal")
showClass("restrictions.1storder")
showClass("restrictions.general")
showClass("restrictions.2ndorder")Run the code above in your browser using DataLab