update-doc: Update an RCOX model

In gRc: Inference in Graphical Gaussian Models with Edge and Vertex Symmetries

Update an RCOX model

Description

update will update and (by default) re-fit an RCOX model. It does this by extracting the call stored in the object, updating the call and (by default) evaluating that call. Sometimes it is useful to call update with only one argument, for example if the data frame has been corrected

Arguments

object	An RCOX model, an object of class RCOX
vcc	Specification of the vertex colour classes in the model
ecc	Specification of the edge colour classes in the model
splitvcc	Existing vertex colour class to be split
splitecc	Existing edge colour class to be split
joinvcc	Existing vertex colour classes to be joined
joinecc	Existing vertex colour classes to be joined
addecc	New edge colour classes to be added
dropecc	Existing vertex color classes to be dropped (deleted)
Kstart	A start value for K
fit	Should the updated model be fitted.
control	A list of control parameters.
trace	For debugging purposes
...	Additional arguments, currently not used.

Value

A new model object of class 'rcox'.

Warning

Only one of the arguments pertaining to edge colour classes (i.e. ecc, splitecc, joinecc, dropecc, addecc) should be applied at the time. Likewise for the arguments pertaining to the vertex colour classes.

The result will otherwise be highly unpredictable and is likely to cause an error.

Author(s)

Søren Højsgaard, [e-mail]

See Also

rcox

Examples

data(math)
gm  = ~al:an:st
vcc = list(~me+st, ~ve+an, ~al)
ecc = list(~me:ve+me:al, ~ve:al+al:st)

m1 <- rcox(gm=gm, vcc=vcc, ecc=ecc, data=math, method='matching', trace=0)

update(m1, joinvcc=list(~me+st, ~ve+an))
update(m1, joinecc=list(~al:an, ~an:st))

update(m1, splitvcc=~ve+an)
update(m1, splitecc=~me:ve+me:al)


update(m1, dropecc=list(~me:st+st:an,~al:an,~st:al))
update(m1, addecc=list(~an:me+st:ve))

gRc documentation built on April 30, 2023, 9:09 a.m.