lava (version 1.4.7)

labels<-: Define labels of graph

Description

Alters labels of nodes and edges in the graph of a latent variable model

Usage

"labels"(object, ...) <- value
"edgelabels"(object, to, ...) <- value
"nodecolor"(object, var=vars(object),
border, labcol, shape, lwd, ...) <- value

Arguments

object

lvm-object.

value

node label/edge label/color

to

Formula specifying outcomes and predictors defining relevant edges.

...

Additional arguments (lwd, cex, col, labcol), border.

var

Formula or character vector specifying the nodes/variables to alter.

border

Colors of borders

labcol

Text label colors

shape

Shape of node

lwd

Line width of border

Examples

m <- lvm(c(y,v)~x+z)
regression(m) <- c(v,x)~z
labels(m) <- c(y=expression(psi), z=expression(zeta))
nodecolor(m,~y+z+x,border=c("white","white","black"),
          labcol="white", lwd=c(1,1,5),
          lty=c(1,2)) <-  c("orange","indianred","lightgreen")
edgelabels(m,y~z+x, cex=c(2,1.5), col=c("orange","black"),labcol="darkblue",
           arrowhead=c("tee","dot"),
           lwd=c(3,1)) <- expression(phi,rho)
edgelabels(m,c(v,x)~z, labcol="red", cex=0.8,arrowhead="none") <- 2
if (interactive()) {
    plot(m,addstyle=FALSE)
}

m <- lvm(y~x)
labels(m) <- list(x="multiple\nlines")
if (interactive()) {
op <- par(mfrow=c(1,2))
plot(m,plain=TRUE)
plot(m)
par(op)

d <- sim(m,100)
e <- estimate(m,d)
plot(e,type="sd")
}