create_graph {DiagrammeR} | R Documentation |
Generates a graph object using data frames for nodes and/or edges; the graph object can be manipulated by other functions.
create_graph(nodes_df = NULL, edges_df = NULL, graph_attrs = NULL, node_attrs = NULL, edge_attrs = NULL, directed = TRUE, graph_name = NULL, graph_time = NULL, graph_tz = NULL, generate_dot = TRUE)
nodes_df |
an optional data frame containing, at minimum, a column
(called |
edges_df |
an optional data frame containing, at minimum, two
columns (called |
graph_attrs |
an optional vector of graph attribute statements that can serve as defaults for the graph. |
node_attrs |
an optional vector of node attribute statements that can serve as defaults for nodes. |
edge_attrs |
an optional vector of edge attribute statements that can serve as defaults for edges. |
directed |
with |
graph_name |
an optional string for labeling the graph object. |
graph_time |
a date or date-time string (required for insertion of
graph into a graph series of the type |
graph_tz |
an optional value for the time zone ( |
generate_dot |
an option to generate Graphviz DOT code and place into the graph object. |
a graph object of class dgr_graph
.
## Not run: # Create an empty graph graph <- create_graph() # Create a graph with nodes but no edges nodes <- create_nodes(nodes = c("a", "b", "c", "d")) graph <- create_graph(nodes_df = nodes) # Create a graph with nodes with values, types, labels nodes <- create_nodes(nodes = c("a", "b", "c", "d"), label = TRUE, type = c("type_1", "type_1", "type_5", "type_2"), shape = c("circle", "circle", "rectangle", "rectangle"), values = c(3.5, 2.6, 9.4, 2.7)) graph <- create_graph(nodes_df = nodes) # Create a graph from an edge data frame, the nodes will edges <- create_edges(from = c("a", "b", "c"), to = c("d", "c", "a"), rel = "leading_to") graph <- create_graph(edges_df = edges) # Create a graph with both nodes and nodes defined, and, # add some default attributes for nodes and edges graph <- create_graph(nodes_df = nodes, edges_df = edges, node_attrs = "fontname = Helvetica", edge_attrs = c("color = blue", "arrowsize = 2")) ## End(Not run)