Class unions in package distrMod defined for internal
purposes; these are OptionalNumeric, OptionalMatrix,
MatrixorFunction, ShowDetails
All of these classes are virtual: No objects may be created from them.
Peter Ruckdeschel peter.ruckdeschel@uni-oldenburg.de
These classes are used internally to make available methods or to allow slots of classes to be filled with varying types. In particular
"OptionalNumericOrMatrix"may contain objects of class
"OptionalNumeric" or "matrix";
"OptionalNumericOrMatrixOrCall"may contain objects of class
"OptionalNumericOrMatrix" or "call"; it is used e.g. for
slot asvar of class "Estimate", as it may or may not be
present or be a call; otherwise it has to be a number (numeric) or a matrix.
"OptionalDistrListOrCall"may contain objects of class
"DistrList" or "call"; it is used e.g. for
slot L2derivDistr of class "L2ParamFammily",
as it may or may not be present or be a call;
otherwise it has to be a list of distributions.
"MatrixorFunction"may contain objects of class
"OptionalFunction" or "matrix"; it is used e.g. for
slot trafo of class "ParamFamParameter", as it may or may not be
present and if it is present, it has to either be a function or a matrix,
see trafo-methods.
"ShowDetails"may contain objects of class
"Estimate", "MCEstimate", "Confint", "PosSemDefSymmMatrix"
"ParamFamily", or "ParamFamParameter"; used to provide
sort of a ``show with extra arguments'', in form of a common
print method for these S4 classes, which essentially just
temporarily sets the global options according to the optional arguments
digits and show.details, calls show and then re-sets
the options to their global settings.
"L2LocationScaleUnion"is a proper, but virtual in-between class
between class "L2GroupParamFamily" and "L2LocationFamily",
"L2ScaleFamily", and "L2LocationScaleFamily";
in addition to class "L2GroupParamFamily" it has a slot
locscalename (with corresponding accessor and replacement method)
to capture the fact that location and scale
parameter may carry names other than "loc" resp. "scale";
used to provide a common class for (parts of) methods modifyModel
locscalename and locscalename<-.
"L2ScaleShapeUnion"is a proper, but virtual in-between class
between class "L2GroupParamFamily" and, e.g., "GammaFamily",
"GParetoFamily", and "EVDFamily" (the latter from
extension package RobExtremes; it has a slot
scaleshapename (with corresponding accessor and replacement method)
to capture the fact that location and scale
parameter may carry names other than "shape" resp. "scale";
used to provide a common class for (parts of) methods
scaleshapename and scaleshapename<-.
"L2ScaleUnion"is a class union between "L2ScaleShapeUnion"
and "L2LocationScaleUnion" to allow for specific general
scaling methods; to this end there is method scalename.
numeric-class,
matrix-class,
function-class,
MCEstimate-class,
Estimate-class,
Confint-class,
PosSemDefSymmMatrix-class,
L2GroupParamFamily-class,
L2LocationFamily-class,
L2ScaleFamily-class,
GammaFamily-class,
L2LocationScaleFamily-class,
ParamFamParameter-class
ParamFamily-class