DiagrammeR (version 0.6)

graphviz_graph: Create a graph object using data frames representative of nodes and edges

Description

Generates a graph object using data frames for nodes and/or edges; the graph object can be manipulated by other functions.

Usage

graphviz_graph(nodes_df = NULL, edges_df = NULL, graph_attrs = NULL,
  node_attrs = NULL, edge_attrs = NULL, directed = TRUE)

Arguments

nodes_df

a data frame containing, at minimum, a column (called 'nodes') which contains node IDs for the graph. Optionally, additional columns (named as Graphviz node attributes) can be included with values for the named node attribute.

edges_df

a data frame containing, at minimum, a column (called 'edge_op') with edge operations as character strings (in the form of '[node_id] -> [node_id]). Alternatively, there may be two columns (called 'edge_from' and 'edge_to') where node IDs are provided. Op

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 TRUE (the default) or FALSE, either directed or undirected edge operations will be generated, respectively.