Plot function for a REmrt object. The plot shows the initial tree
result of REmrt with the nodes being colored based on how often they
appear as nodes in the amount of iterations given.
The plot function uses the plot method from the package ggplot2
plotPV(x, iter = 10, c.pruning = 0, ...)A plot visualizing an RE meta-tree with node frequencies.
A REmrt object.
Amount of iterations for frequency check.
The pruning strictness value (used in the c * SD rule in the pruning process)
Additional arguments to pass.
For categorical variables we recommend to use short names for levels to avoid overlapping labels at split points.