Transform an adjacency list into a matrix
Usage
adj_to_matrix(A, type = c("adjacency", "incidence", "weighted"), loops = FALSE)
Arguments
- A
An adjacent list
- type
Transform the adjacent list into an adjacency matrix, an incidence matrix or a weighted matrix
- loops
Whether to include loops into the matrix
Value
This function transforms an adjacency list into a matrix
Author
Alejandro Espinosa-Rada
Examples
adj_groups <- rbind(
c("a", "b", "c"), c("a", "c", NA),
c("b", "c", NA), c("c", NA, NA),
c("c", "a", NA)
)
M <- adj_to_matrix(adj_groups, type = "adjacency", loops = TRUE)
M
#> a a b c c
#> a 1 1 1 1 1
#> a 1 1 0 1 1
#> b 0 0 1 1 1
#> c 0 0 0 1 1
#> c 1 1 0 1 1
