Assess familial relationships between variables | R Documentation |
Parents and children are those nodes that either directly cause or are caused
by the variable, respectively. Ancestors and descendants are those nodes that
are on the path to or descend from the variable. The node_*()
functions label variables depending on their relationship. The
ggdag_*()
functions plot the results. See
dagitty::children for details.
node_children(.tdy_dag, .var, as_factor = TRUE)
node_parents(.tdy_dag, .var, as_factor = TRUE)
node_ancestors(.tdy_dag, .var, as_factor = TRUE)
node_descendants(.tdy_dag, .var, as_factor = TRUE)
node_markov_blanket(.tdy_dag, .var, as_factor = TRUE)
node_adjacent(.tdy_dag, .var, as_factor = TRUE)
ggdag_children(
.tdy_dag,
.var,
...,
size = 1,
edge_type = c("link_arc", "link", "arc", "diagonal"),
node_size = 16,
text_size = 3.88,
label_size = text_size,
text_col = "white",
label_col = "black",
edge_width = 0.6,
edge_cap = 8,
arrow_length = 5,
use_edges = TRUE,
use_nodes = TRUE,
use_stylized = FALSE,
use_text = TRUE,
use_labels = FALSE,
text = NULL,
label = NULL,
node = deprecated(),
stylized = deprecated()
)
ggdag_parents(
.tdy_dag,
.var,
...,
size = 1,
edge_type = c("link_arc", "link", "arc", "diagonal"),
node_size = 16,
text_size = 3.88,
label_size = text_size,
text_col = "white",
label_col = "black",
edge_width = 0.6,
edge_cap = 8,
arrow_length = 5,
use_edges = TRUE,
use_nodes = TRUE,
use_stylized = FALSE,
use_text = TRUE,
use_labels = FALSE,
text = NULL,
label = NULL,
node = deprecated(),
stylized = deprecated()
)
ggdag_ancestors(
.tdy_dag,
.var,
...,
size = 1,
edge_type = c("link_arc", "link", "arc", "diagonal"),
node_size = 16,
text_size = 3.88,
label_size = text_size,
text_col = "white",
label_col = "black",
edge_width = 0.6,
edge_cap = 8,
arrow_length = 5,
use_edges = TRUE,
use_nodes = TRUE,
use_stylized = FALSE,
use_text = TRUE,
use_labels = FALSE,
text = NULL,
label = NULL,
node = deprecated(),
stylized = deprecated()
)
ggdag_descendants(
.tdy_dag,
.var,
...,
size = 1,
edge_type = c("link_arc", "link", "arc", "diagonal"),
node_size = 16,
text_size = 3.88,
label_size = text_size,
text_col = "white",
label_col = "black",
edge_width = 0.6,
edge_cap = 8,
arrow_length = 5,
use_edges = TRUE,
use_nodes = TRUE,
use_stylized = FALSE,
use_text = TRUE,
use_labels = FALSE,
text = NULL,
label = NULL,
node = deprecated(),
stylized = deprecated()
)
ggdag_markov_blanket(
.tdy_dag,
.var,
...,
size = 1,
edge_type = c("link_arc", "link", "arc", "diagonal"),
node_size = 16,
text_size = 3.88,
label_size = text_size,
text_col = "white",
label_col = "black",
edge_width = 0.6,
edge_cap = 8,
arrow_length = 5,
use_edges = TRUE,
use_nodes = TRUE,
use_stylized = FALSE,
use_text = TRUE,
use_labels = FALSE,
text = NULL,
label = NULL,
node = deprecated(),
stylized = deprecated()
)
ggdag_adjacent(
.tdy_dag,
.var,
...,
size = 1,
edge_type = c("link_arc", "link", "arc", "diagonal"),
node_size = 16,
text_size = 3.88,
label_size = text_size,
text_col = "white",
label_col = "black",
edge_width = 0.6,
edge_cap = 8,
arrow_length = 5,
use_edges = TRUE,
use_nodes = TRUE,
use_stylized = FALSE,
use_text = TRUE,
use_labels = FALSE,
text = NULL,
label = NULL,
node = deprecated(),
stylized = deprecated()
)
.tdy_dag |
input graph, an object of class |
.var |
a character vector, the variable to be assessed (must by in DAG) |
as_factor |
logical. Should the relationship variable be a factor? |
... |
additional arguments passed to |
size |
A numeric value scaling the size of all elements in the DAG. This allows you to change the scale of the DAG without changing the proportions. |
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 |
The size of the nodes. |
text_size |
The size of the text. |
label_size |
The size of the labels. |
text_col |
The color of the text. |
label_col |
The color of the labels. |
edge_width |
The width of the edges. |
edge_cap |
The size of edge caps (the distance between the arrowheads and the node borders). |
arrow_length |
The length of arrows on edges. |
use_edges |
A logical value. Include a |
use_nodes |
A logical value. Include |
use_stylized |
A logical value. Include |
use_text |
A logical value. Include |
use_labels |
A logical value. Include |
text |
The bare name of a column to use for |
label |
The bare name of a column to use for |
node |
Deprecated. |
stylized |
Deprecated. |
a tidy_dagitty
with an column related to the given
relationship for variable D relationship or a ggplot
library(ggplot2)
dag <- dagify(
y ~ x + z2 + w2 + w1,
x ~ z1 + w1,
z1 ~ w1 + v,
z2 ~ w2 + v,
w1 ~ ~w2
)
ggdag_children(dag, "w1")
dag %>%
node_children("w1") %>%
ggplot(aes(x = x, y = y, xend = xend, yend = yend, color = children)) +
geom_dag_edges() +
geom_dag_node() +
geom_dag_text(col = "white") +
geom_dag_label_repel(aes(label = children, fill = children), col = "white", show.legend = FALSE) +
theme_dag() +
scale_adjusted() +
scale_color_hue(breaks = c("parent", "child"))
ggdag_parents(dag, "y")
ggdag_ancestors(dag, "x")
ggdag_descendants(dag, "w1")
dag %>%
node_parents("y") %>%
ggplot(aes(x = x, y = y, xend = xend, yend = yend, color = parent)) +
geom_dag_edges() +
geom_dag_point() +
geom_dag_text(col = "white") +
geom_dag_label_repel(aes(label = parent, fill = parent), col = "white", show.legend = FALSE) +
theme_dag() +
scale_adjusted() +
scale_color_hue(breaks = c("parent", "child"))
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