Minimum/maximum overlap — minmax

Two-mode networks can be represented (or 'projected') as one-mode networks.

Usage

minmax_overlap(A, row = TRUE, min = TRUE)

Arguments

A: A matrix object
row: Whether to consider the actors in the rows of the matrix (default) or the column.
min: Whether to extract the minimum (default) or the maximum overlap.

Value

This function return the overlap between the modes (a.k.a. actors, nodes, vertices).

References

Morris, S.A. (2005). Unified Mathematical Treatment of Complex Cascaded Bipartite Networks: The Case of Collections of Journal Papers. Unpub- lished PhD Thesis, Oklahoma State University. Retrieved from http://digital.library.okstate.edu/etd/umi-okstate-1334.pdf

Author

Alejandro Espinosa-Rada

Examples


A <- matrix(c(
  2, 0, 2,
  1, 1, 0,
  0, 3, 3,
  0, 2, 2,
  0, 0, 1
), byrow = TRUE, ncol = 3)
minmax_overlap(A)
#>      [,1] [,2] [,3] [,4] [,5]
#> [1,]    4    1    2    2    1
#> [2,]    1    2    1    1    0
#> [3,]    2    1    6    4    1
#> [4,]    2    1    4    4    1
#> [5,]    1    0    1    1    1