gRbase (version 1.3.9)

gModel: 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)

Arguments

formula

an object of class formula.

gmData

an object of class 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.

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,]