Plot a field dependency graph

Draws a quick base-graphics plot of a dependency graph. Vertices that are calculated fields (present in fields_df$name) are drawn differently.

Usage

plot_dependency_graph(g, fields_df = NULL, seed = NULL)

Arguments

g

An igraph directed graph from build_dependency_graph().

fields_df

Optional data frame with a name column to mark calculated outputs.

seed

Optional integer seed to make the layout reproducible. If NULL (default), the function will not alter the caller's RNG state.

Value

Invisibly returns g.

Examples

fields <- tibble::tibble(
name = c("X_plus_Y", "Z"),
formula = c("[X] + [Y]", "[X_plus_Y] * 2")
)
g <- build_dependency_graph(fields)
plot_dependency_graph(g, fields)           # nondeterministic layout

plot_dependency_graph(g, fields, seed = 1) # deterministic layout