two-mode network from a data.frame — bipartite_from_data

Create a two-mode network from a data.frame

Usage

bipartite_from_data_frame(d, type1, type2, attr = NULL, weighted = TRUE)

Arguments

d: data.frame
type1: column name of mode 1
type2: column name of mode 2
attr: named list of edge attributes
weighted: should a weighted graph be created if multiple edges occur

Value

two mode network as igraph object. The vertex attribute type is TRUE for vertices from type1 and FALSE for vertices from type2.

Details

Vertex identifiers are converted to character, so numeric and factor columns are matched by their values. If weighted = TRUE, multiple edges are merged, their count is stored in the edge attribute weight, numeric edge attributes are summed and other edge attributes keep their first value.

Author

David Schoch

Examples

library(igraph)
edges <- data.frame(mode1 = 1:5, mode2 = letters[1:5])
bipartite_from_data_frame(edges, "mode1", "mode2")
#> IGRAPH b7b7711 UN-B 10 5 -- 
#> + attr: name (v/c), type (v/l)
#> + edges from b7b7711 (vertex names):
#> [1] 1--a 2--b 3--c 4--d 5--e