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The general class gModel
contains a formula object and a
gmData
object. Implementations of different
specific graphical model classes can inherit from this class and
provide methods for parsing the formula. This is illustrated in the
implementation of a class for hierarchical log--linear models,
hllm
.
gModel(formula, gmData)
gModel
creates an object of class gModel
with the two
components formula
and gmData
. These components can be
retrieved or replaced using the accessor functions of the same
names. Also, a gModel
object may be manipulated using the
dynamicGraph
interface.
an object of class formula
.
an object of class gmData
.
Søren Højsgaard, sorenh@math.aau.dk,
Claus Dethlefsen, cld@rn.dk
gmData
, gRfit
, hllm
.
data(rats)
rats <- as.gmData(rats)
m1 <- gModel(~.^. , rats)
m1.form <- formula(m1)
m1.data <- gmData(m1)
observations(gmData(m1)) <- observations(rats)[1:10,]
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