R: Plot path diagram

plot.lvm {lava} | R Documentation

## Plot path diagram

### Description

Plot the path diagram of a SEM

### Usage

    ## S3 method for class 'lvm'
    plot(x, diag = FALSE, cor = TRUE, labels = FALSE,
      intercept = FALSE, addcolor = TRUE, plain = FALSE, cex,
      fontsize1 = 10, noplot = FALSE, graph = list(rankdir = "BT"),
      attrs = list(graph = graph), unexpr = FALSE, addstyle = TRUE,
      plot.engine = lava.options()$plot.engine, init = TRUE,
      layout = lava.options()$layout, edgecolor = lava.options()$edgecolor,
      graph.proc = lava.options()$graph.proc, ...)

### Arguments

`x` | Model object
`diag` | Logical argument indicating whether to visualize variance parameters (i.e. diagonal of variance matrix)
`cor` | Logical argument indicating whether to visualize correlation parameters
`labels` | Logical argument indiciating whether to add labels to plot (Unnamed parameters will be labeled p1,p2,...)
`intercept` | Logical argument indiciating whether to add intercept labels
`addcolor` | Logical argument indiciating whether to add colors to plot (overrides `nodecolor` calls)
`plain` | if TRUE strip plot of colors and boxes
`cex` | Fontsize of node labels
`fontsize1` | Fontsize of edge labels
`noplot` | if TRUE then return `graphNEL` object only
`graph` | Graph attributes (Rgraphviz)
`attrs` | Attributes (Rgraphviz)
`unexpr` | if TRUE remove expressions from labels
`addstyle` | Logical argument indicating whether additional style should automatically be added to the plot (e.g. dashed lines to double-headed arrows)
`plot.engine` | default 'Rgraphviz' if available, otherwise visNetwork,igraph
`init` | Reinitialize graph (for internal use)
`layout` | Graph layout (see Rgraphviz or igraph manual)
`edgecolor` | if TRUE plot style with colored edges
`graph.proc` | Function that post-process the graph object (default: subscripts are automatically added to labels of the nodes)
`...` | Additional arguments to be passed to the low level functions

### Author(s)

Klaus K. Holst

### Examples

    if (interactive()) {
    m <- lvm(c(y1,y2) ~ eta)
    regression(m) <- eta ~ z+x2
    regression(m) <- c(eta,z) ~ x1
    latent(m) <- ~eta
    labels(m) <- c(y1=expression(y[scriptscriptstyle(1)]),
    y2=expression(y[scriptscriptstyle(2)]),
    x1=expression(x[scriptscriptstyle(1)]),
    x2=expression(x[scriptscriptstyle(2)]),
    eta=expression(eta))
    edgelabels(m, eta ~ z+x1+x2, cex=2, lwd=3,
               col=c("orange","lightblue","lightblue")) <- expression(rho,phi,psi)
    nodecolor(m, vars(m), border="white", labcol="darkblue") <- NA
    nodecolor(m, ~y1+y2+z, labcol=c("white","white","black")) <- NA
    plot(m,cex=1.5)

    d <- sim(m,100)
    e <- estimate(m,d)
    plot(e)

    m <- lvm(c(y1,y2) ~ eta)
    regression(m) <- eta ~ z+x2
    regression(m) <- c(eta,z) ~ x1
    latent(m) <- ~eta
    plot(lava:::beautify(m,edgecol=FALSE))
    }

[Package lava version 1.5.1 Index]