removeEdge: removeEdge

In Bioconductor/graph: graph: A package to handle graph data structures

removeEdge

Description

A function to remove the specified edges from a graph.

Usage

removeEdge(from, to, graph)

Arguments

from	from edge labels
to	to edge labels
graph	a graph object

Details

A new graph instance is returned with the edges specified by corresponding elements of the from and to vectors removed. If from and to are not the same length, one of them should have length one. All edges to be removed must exist in graph.

Value

A new instance of a graph with the same class as graph is returned with the specified edges removed.

Author(s)

R. Gentleman

See Also

addNode,addEdge,removeNode

Examples

  V <- LETTERS[1:4]
  edL1 <- vector("list", length=4)
  names(edL1) <- V
  for(i in 1:4)
    edL1[[i]] <- list(edges=c(2,1,4,3)[i], weights=sqrt(i))
  gR <- graphNEL(nodes=V, edgeL=edL1)

  gX <- removeEdge("A", "B", gR)

  set.seed(123)
  g <- randomEGraph(V=letters[1:5],edges=5)
  g2 <- removeEdge(from=c("a","b"), to=c("c","e"), g)

Bioconductor/graph documentation built on Nov. 2, 2024, 7:25 a.m.