ggdag (version 0.1.0)

Canonicalize DAGs: Canonicalize a DAG

Description

Takes an input graph with bidirected edges and replaces every bidirected edge x <-> y with a substructure x <- L -> y, where L is a latent variable. See dagitty::canonicalize() for details. Undirected edges are not currently supported in ggdag.

Usage

node_canonical(.dag, ...)
ggdag_canonical(.tdy_dag, ..., edge_type = "link_arc", node_size = 16,
  text_size = 3.88, label_size = text_size, text_col = "white",
  label_col = text_col, node = TRUE, stylized = TRUE, text = TRUE,
  use_labels = NULL)

Arguments

.dag, .tdy_dag

input graph, an object of class tidy_dagitty or dagitty

...

additional arguments passed to tidy_dagitty()

edge_type

a character vector, the edge geom to use. One of: "link_arc", which accounts for directed and bidirected edges, "link", "arc", or "diagonal"

node_size

size of DAG node

text_size

size of DAG text

label_size

size of label text

text_col

color of DAG text

label_col

color of label text

node

logical. Should nodes be included in the DAG?

stylized

logical. Should DAG nodes be stylized? If so, use geom_dag_nodes and if not use geom_dag_point

text

logical. Should text be included in the DAG?

use_labels

a string. Variable to use for geom_dag_repel_label(). Default is NULL.

Value

a tidy_dagitty that includes L or a ggplot

Examples

# NOT RUN {
dag <- dagify(y ~ x + z, x ~~ z)

ggdag(dag)

node_canonical(dag)
ggdag_canonical(dag)

# }