ehForceFix {CoCoRaw} | R Documentation |
Force terms into or out of models in the EH procedure.
By ehForceFix(gc, fix = "in", ...)
edges (or generators)
are forced into all the models in the EH-procedure.
By ehForceFix(gc, fix = "out", ...)
all terms
containing a generator in the generating class
gc
are excluded from all models considered
in the EH-procedure.
ehForceFix(gc = "what", fix = "out", add.fix = FALSE, redo.fix = FALSE, data = NULL, object = .object.of.thing(data = data, ...), ...)
gc |
A character string.
The argument gc is a generating class.
|
fix |
A character string.
The argument fix should be
"out" ( ... ),
or "in" ( ... ).
|
add.fix |
Logical.
ehForceFix(gc, fix = "out", ...) will clear
the fixing set by previous use of
ehForceFix(gc, fix = "out", ...) ,
if add.fix is FALSE.
If add.fix is TRUE then
the terms are added to the fixing.
Similar for ehForceFix(gc, fix = "in", ...) .
|
redo.fix |
Logical, if redo.fix is TRUE then
the fixing is repeated.
ehForceFix(gc, fix = "out", redo.fix = TRUE, ...)
will redo the combination of the last
ehForceFix(gc, fix = "out", ...) and following
ehForceFix(gc, fix = "out", add.fix = TRUE, ...) .
Fixing set by ehForceFix(gc, fix = "in", ...)
is then modified according to the fixing out.
Similar for
ehForceFix(gc, fix = "in", redo.fix = TRUE, ...) .
|
data |
See exportCoCo . |
object |
See exportCoCo . |
... |
Additional arguments to generate the CoCo object
from the data argument. See propertyModel . |
Terms set by ehForceFix(gc, fix = "out", ...)
is the dual representation of the maximal models considered,
see pp. 340 Edwards & Havranek (1985). To exclude edges
in the graphical search only generators with cardinality 2
(edges) should be given to ehForceFix(gc, fix = "out", ...)
.
TRUE
Using the function ehForceFix
will only
set up fixing for future models visited be eh
.
Thus if the EH-procedure already has been used the duals and the
model classes should be disposed of be disposeOfEh
.
ehForceFix(gc, fix = "out", ...)
and
ehForceFix(gc, fix = "in", ...)
will interact:
Terms set by ehForceFix(gc, fix = "in", ...)
are remove from the terms set by
ehForceFix(gc, fix = "out", ...)
:
Terms set by ehForceFix(gc, fix = "in", ...)
are added to the generating class achieved by transforming
ehForceFix(gc, fix = "out", ...)
from the dual representation to the normal representation,
and the resulting generating class is transformed back to
the dual representation.
Term set by ehForceFix(gc, fix = "out", ...)
are remove from the terms set by
ehForceFix(gc, fix = "in", ...)
:
The terms set by ehForceFix(gc, fix = "in", ...)
is restricted to the generating class achieved by transforming
ehForceFix(gc, fix = "out", ...)
from the dual representation
to the normal representation.
Jens Henrik Badsberg
Badsberg, J.H.: A guide to CoCo, JSS, 2001 ( http://www.jstatsoft.org/v06/i04/ ) and Badsberg, J.H.: Xlisp+CoCo, Aalborg University, 1996.