labels-set function

Define labels of graph

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

## Default S3 replacement method:
labels(object, ...) <- value
## S3 replacement method for class 'lvm'
edgelabels(object, to, ...) <- value
## Default S3 replacement method:
nodecolor(object, var=vars(object),
border, labcol, shape, lwd, ...) <- value

Arguments

• object: lvm-object.
• ...: Additional arguments (lwd, cex, col, labcol), border.
• value: node label/edge label/color
• to: Formula specifying outcomes and predictors defining relevant edges.
• 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")
}

Author(s)

Klaus K. Holst