lavaan2graph {SEMgraph}

lavaan model to graph

Description

Convert a model, specified using lavaan syntax, to an igraph object.

Usage

lavaan2graph(model, directed = TRUE, psi = TRUE, verbose = FALSE, ...)

Arguments

model

Model specified using lavaan syntax.

directed

Logical value. If TRUE (default), edge directions from the model will be preserved. If FALSE, the resulting graph will be undirected.

psi

Logical value. If TRUE (default) covariances will be converted into bidirected graph edges. If FALSE, covariances will be excluded from the output graph.

verbose

Logical value. If TRUE, a plot of the output graph will be generated. For large graphs, this could significantly increase computation time. If FALSE (default), graph plotting will be disabled.

...

Currently ignored.

Value

An igraph object.

Author(s)

Mario Grassi [e-mail]

Examples

# Writing path diagram in lavaan syntax

model<-"
#path model
Jnk ~ PKA + PKC
P38 ~ PKA + PKC
Akt ~ PKA + PIP3
Erk ~ PKA + Mek
Mek ~ PKA + PKC + Raf
Raf ~ PKA + PKC
PKC ~ PIP2 + Plcg
PIP2 ~ PIP3 + Plcg
Plcg ~ PIP3

#(co)variances
PKA ~~ PIP3
"

# Graph with covariances
G0 <- lavaan2graph(model, psi = TRUE)
plot(G0, layout = layout.circle)

# Graph without covariances
G1 <- lavaan2graph(model, psi = FALSE)
plot(G1, layout = layout.circle)