lava (version 1.4.1)

modelsearch: Model searching

Description

Performs Wald or score tests

Usage

modelsearch(x, k = 1, dir = "forward", ...)

Arguments

x

lvmfit-object

k

Number of parameters to test simultaneously. For equivalence the number of additional associations to be added instead of rel.

dir

Direction to do model search. "forward" := add associations/arrows to model/graph (score tests), "backward" := remove associations/arrows from model/graph (wald test)

...

Additional arguments to be passed to the low level functions

Value

• Matrix of test-statistics and p-values

See Also

compare, equivalence

Examples

m <- lvm();
regression(m) <- c(y1,y2,y3) ~ eta; latent(m) <- ~eta
regression(m) <- eta ~ x
m0 <- m; regression(m0) <- y2 ~ x
dd <- sim(m0,100)[,manifest(m0)]
e <- estimate(m,dd);
modelsearch(e)