Remove Edges from a Network

Remove Edges from a Network

Usage

remove_edges(
  x,
  from,
  to,
  keep_isolates = TRUE,
  keep_format = FALSE,
  directed = NULL
)

Arguments

x

Network input.

from

Source nodes, by label or index.

to

Target nodes, by label or index. The same length as from.

keep_isolates

Logical. Keep nodes that end up with no edges? Default TRUE, matching filter_edges.

keep_format

Logical. Return the input format when TRUE.

directed

Logical or NULL. If NULL (default), auto-detect.

Value

A cograph_network without those edges, or the input format when keep_format = TRUE. Named pairs that carry no edge are reported in a cograph_no_such_edge warning.

See also

add_edges, filter_edges, remove_isolates

Examples

adj <- matrix(c(0, 1, 1, 1, 0, 1, 1, 1, 0), 3, 3)
rownames(adj) <- colnames(adj) <- c("A", "B", "C")

remove_edges(adj, from = "A", to = "B")
#> Cograph network: 3 nodes, 2 edges ( undirected )
#> Source: matrix 
#>   Nodes (3): A, B, C
#>   Edges: 2 / 3 (density: 66.7%)
#>   Weights: [1.000, 1.000]  |  mean: 1.000
#>   Strongest edges:
#>     A -- C  1.000
#>     B -- C  1.000
#> Layout: none 
#>   Use as.data.frame() for the edge table, as.data.frame(what = "nodes") for the nodes.