graphviz.plot(x, highlight = NULL, layout = "dot")bn.dots,
neato, twopi, circo and
fdp.
nodes: a character vector, the labels
of the nodes to be highlighted.arcs: the arcs to be highlighted (a
two-column matrix, whose columns are labeledfromandto).and optionally one or more of the following formatting parameters:
col: an integer or character string (the
highlight colour). The default value isred.fill: an integer or character string (the
colour used as a background colour for the nodes).
The default value iswhite.