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convert signed two-mode network to unsigned

Source: R/complex_matrices.R
as_unsigned_2mode.Rd

convert signed two-mode network to unsigned

Usage

as_unsigned_2mode(g, primary = TRUE)

Arguments

g

igraph object. Two-mode network, must have a "sign" edge attribute.

primary

logical. Which mode to transform

Value

igraph object

See also

as_signed_proj

Author

David Schoch

Examples

library(igraph)

# create a simple signed two mode network
el <- matrix(c(1, "a", 1, "b", 1, "c", 2, "a", 2, "b"), ncol = 2, byrow = TRUE)
g <- graph_from_edgelist(el, directed = FALSE)
E(g)$sign <- c(1, 1, -1, 1, -1)
V(g)$type <- c(FALSE, TRUE, TRUE, TRUE, FALSE)

# convert to unsigned two-mode network and project
l <- as_unsigned_2mode(g, primary = TRUE)
p <- bipartite_projection(l, which = "true")

# turn the unsigned projection back to a signed network
as_signed_proj(p)
#> IGRAPH 1ab5e64 UN-- 3 3 -- 
#> + attr: name (v/c), type (e/c)
#> + edges from 1ab5e64 (vertex names):
#> [1] a--b a--c b--c