Skip to contents

Plots a graph in R

lav_plotinfo_rgraph.Rd

Creates a graph in R showing a simple diagram of the model.

Usage

lav_plotinfo_rgraph(plotinfo,
                    sloped_labels = TRUE,
                    outfile = "",
                    addgrid = TRUE,
                    mlovcolors = c("lightgreen", "lightblue"),
                    lightness = 1,
                    italic = TRUE,
                    auto_subscript = TRUE
                   )

Arguments

plotinfo

A plotinfo structure as returned from lav_plotinfo_positions.

sloped_labels

Logical, should labels be sloped above (or below) the edges?

outfile

Character string naming the file in which to store the diagram as a PNG, or NA to show the plot in R.

addgrid

Logical, add a grid with indicated 'positions' to the graph?

mlovcolors

Array of two colors for distinguishing ov nodes with the same name across the levels of a multilevel model.

lightness

A scalar factor to modify the distances between nodes.

italic

Should labels be in an italic font? Attention: switching to an italic font is only possible if the label value is not an expression!

auto_subscript

Logical, see lav_label_code.

Value

NULL (invisible)

See also

lav_plotinfo_positions

Examples

model <- 'alpha  =~ x1 + x2 + x_3     # latent variable
          beta <~ x4 + x5 + x6        # composite
          gamma =~ x7 + x8 + x9       # latent variable
          Xi =~ x10 + x11 + x12 + x13 # latent variable
          # regressions
          Xi ~ v * alpha + t * beta + c * 1
          alpha ~ yy * Theta1 + tt * beta + ss * gamma
          '
test <- lav_model_plotinfo(model)
test1 <- lav_plotinfo_positions(test)
lav_plotinfo_rgraph(test1, lightness = 1.1)

# better position for constant in regressen Xi, no sloped labels
test2 <- lav_plotinfo_positions(test, placenodes = list(`1vanXi` = c(2, 5)))
lav_plotinfo_rgraph(test2, FALSE, lightness = 1.1)

modelml <- '
        level: 1
        fw =~ 1*y_1 + y_2 + y_3 + y_5
        level: 2
        fb =~ 1*y_1 + y_2 + y_3 + y_4
        y_2 ~~ cv24 * y_4
  '
test <- lav_model_plotinfo(modelml)
test <- lav_plotinfo_positions(test)
lav_plotinfo_rgraph(test, sloped_labels = FALSE, addgrid = FALSE, 
                auto_subscript = FALSE)

if (FALSE) { # \dontrun{
# example where plot is stored in a PNG file
lav_plotinfo_rgraph(test, sloped_labels = FALSE, addgrid = FALSE,
                auto_subscript = FALSE, outfile="demo_rplot.png")
} # }