Evaluate an R expression within the environment of the elements
of a sem_graph object, and return the modified sem_graph.
edit_graph(x, expr, element = c("edges", "nodes"), ...)
edit_nodes(x, expr, ...)
edit_edges(x, expr, ...)An object of class sem_graph.
expression to evaluate.
Character. The element of the sem_graph to edit,
defaults to c("edges", "nodes").
Arguments passed on to within.
An object of class sem_graph.
p <- prepare_graph(layout = get_layout("x", rows = 1))
p <- edit_graph(p, {colour = "blue"}, element = "nodes")
plot(p)