R: Create a graph using an adjacency matrix

from_adj_matrix {DiagrammeR}

R Documentation

Create a graph using an adjacency matrix

Description

Using an adjacency matrix object, generate a graph of class dgr_graph.

Usage

from_adj_matrix(x, mode = "undirected", weighted = FALSE, use_diag = TRUE,
  graph_name = NULL, write_backups = FALSE)

Arguments

`x`	a square `matrix` object serving as the adjacency matrix.
`mode`	the method in which to interpret the input adjacency matrix. Options include: `undirected`, `directed`, `upper`, `lower`, `max`, `min`, and `plus`.
`weighted`	whether to create a weighted graph from the adjacency matrix.
`use_diag`	whether to use the diagonal of the adjacency matrix in calculations. If `TRUE` then the diagonal values will be included as is. If `FALSE` then the diagonal values will be replaced with zero values before inclusion in any calculations.
`graph_name`	an optional string for labeling the graph object.
`write_backups`	an option to write incremental backups of changing graph states to disk. If `TRUE`, a subdirectory of the working directory will be used to store `RDS` files. The default value is `FALSE` so one has to opt in to use this functionality.

Value

a graph object of class dgr_graph.

Examples

# Create an adjacency matrix
adj_matrix <-
  sample(0:1, 100,
         replace = TRUE,
         prob = c(0.9,0.1)) %>%
  matrix(nc = 10)

# Create a graph from the adjacency matrix
graph <-
  from_adj_matrix(adj_matrix)

[Package DiagrammeR version 1.0.1 Index]