adjacency: Create adjacency matrix

In networkR: Network Analysis and Visualization

Description

Create an adjacency matrix from a set of nodes and edges.

Usage

adjacency(from, to, weight = 1, directed = TRUE)

Arguments

from	a vector of nodes where the edges originate
to	a vector of nodes where the edges point to
weight	a numeric vector of weights
directed	logical. Are the edges directed (TRUE, the default) or bidirected(FALSE).

Value

Returns a sparse adjacency matrix

Author(s)

Claus Ekstrom [e-mail]

Examples

from <- c("A", "A", "A", "B", "C")
to <- c("B", "C", "D", "D", "E")
adjacency(from, to)

from <- c("A", "A", "A", "B", "C")
to <- c("B", "C", "D", "D", "E")
weights <- c(1, .5, 1, .7, 1)
adjacency(from, to, weights)

networkR documentation built on Sept. 20, 2019, 5:05 p.m.