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, ...)

Arguments

x

An object of class sem_graph.

expr

expression to evaluate.

element

Character. The element of the sem_graph to edit, defaults to c("edges", "nodes").

...

Arguments passed on to within.

Value

An object of class sem_graph.

Examples

p <- prepare_graph(layout = get_layout("x", rows = 1)) p <- edit_graph(p, {colour = "blue"}, element = "nodes") plot(p)