DiagrammeR (version 0.8.2)

create_edges: Create a data frame with edges and their attributes

Description

Combine several named vectors for edges and their attributes into a data frame, which can be combined with other similarly-generated data frame, or, added to a graph object.

Usage

create_edges(from, to, rel = NULL, ...)

Arguments

from

a vector of node ID values from which edges are outbound. The vector length must equal to that of the to vector.

to

a vector of node ID values to which edges are incoming. The vector length must equal to that of the from vector.

rel

an optional 'rel' description for each edge.

...

one or more named vectors for associated attributes.

Value

a data frame.

Examples

## Not run: 
# # Create a simple edge data frame and view results
# edges <-
#   create_edges(from = c("a", "b", "c"),
#                to = c("d", "c", "a"),
#                rel = "leading_to")
# 
# render_graph(create_graph(edges_df = edges),
#                           output = "visNetwork")
# 
# # Create an edge data frame with additional parameters
# edges <-
#   create_edges(from = c("a", "b", "c"),
#                to = c("d", "c", "a"),
#                rel = "leading_to",
#                length = c(50, 100, 250),
#                color = "green",
#                width = c(1, 1, 2))
# 
# render_graph(create_graph(edges_df = edges),
#                           output = "visNetwork")
# ## End(Not run)