gRapHD (version 0.2.5)

modelFormula: Model's formula

Description

Returns the formula of the model.

Usage

modelFormula(model)

Arguments

model

gRapHD class.

Value

List with the generators of the model:

discrete

terms \((d,\emptyset)\)

linear

terms \((d,\gamma^2)\)

quadratic

terms \((d,\gamma)\) and \((d,\{\gamma,\mu\})\)

quadratic2

terms \((d,c^2)\)

Details

See Lauritzen (1996), pages 202-203, and 215-216 for more details.

References

Lauritzen, S.L. (1996) Graphical Models, Oxford University Press.

Examples

# NOT RUN {
data(dsMixed)
m <- minForest(dsMixed,homog=TRUE,stat="LR")
str(modelFormula(m))
#List of 4
# $ discrete  :List of 4
#  ..$ : int [1:2] 1 3
#  ..$ : int [1:2] 3 4
#  ..$ : int [1:2] 3 5
#  ..$ : int [1:2] 5 2
# $ linear    : list()
# $ quadratic :List of 5
#  ..$ : num [1:2] 5 8
#  ..$ : num [1:2] 5 9
#  ..$ : num [1:2] 4 11
#  ..$ : num [1:2] 5 14
#  ..$ : num [1:2] 2 15
# $ quadratic2:List of 6
#  ..$ : num [1:2] 6 11
#  ..$ : num [1:2] 7 8
#  ..$ : num [1:2] 9 10
#  ..$ : num [1:2] 9 13
#  ..$ : num [1:2] 12 15
#  ..$ : num 14

m <- minForest(dsMixed,homog=FALSE,stat="LR")
str(modelFormula(m))
#List of 4
# $ discrete  :List of 4
#  ..$ : int [1:2] 1 3
#  ..$ : int [1:2] 3 4
#  ..$ : int [1:2] 3 5
#  ..$ : int [1:2] 5 2
# $ linear    :List of 10
#  ..$ : num [1:2] 2 6
#  ..$ : num [1:2] 5 7
#  ..$ : num [1:2] 5 8
#  ..$ : num [1:2] 5 9
#  ..$ : num [1:2] 5 10
#  ..$ : num [1:2] 2 11
#  ..$ : num [1:2] 3 12
#  ..$ : num [1:2] 2 13
#  ..$ : num [1:2] 5 14
#  ..$ : num [1:2] 2 15
# $ quadratic : list()
# $ quadratic2: list()
# }