walk.fwd: Stepwise efficient forward selection in decomposable...

In ess: Efficient Stepwise Selection in Decomposable Models

Description

Stepwise efficient forward selection in decomposable graphical models

Usage

## S3 method for class 'fwd'
walk(x, df, q = 0.5, thres = 5)

Arguments

x	A fwd object
df	data.frame
q	Penalty term in the stopping criterion (0 = AIC and 1 = BIC)
thres	A threshold mechanism for choosing between two different ways of calculating the entropy. Can Speed up the procedure with the "correct" value.

Details

A fwd object can be created using the gengraph constructor with type = "fwd"

Value

A fwd object; a subclass of gengraph) used for forward selection.

References

https://arxiv.org/abs/1301.2267, doi: 10.1109/ictai.2004.100

See Also

fit_graph, walk.bwd, gengraph

Examples

d <- derma[, 10:25]

g <- gengraph(d, type = "fwd")
s <- walk(g, d)
print(s)
plot(s)
adj_lst(s)
adj_mat(s)

ess documentation built on May 31, 2021, 9:10 a.m.