gRbase (version 1.9.0)

zzz-gModel: Old: Class "gModel" - graphical models

Description

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.

Usage

gModel(formula, gmData)

Value

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.

Arguments

formula

an object of class formula.

gmData

an object of class gmData.

Author

Søren Højsgaard, ,
Claus Dethlefsen,

See Also

gmData, gRfit, hllm.

Examples

data(rats)
rats <- as.gmData(rats)

m1 <- gModel(~.^. , rats)
m1.form <- formula(m1)
m1.data <- gmData(m1)
observations(gmData(m1)) <- observations(rats)[1:10,]