View source: R/net_functions.R
get_shortest_distances | R Documentation |
Calculate all pairs of shortest distances of unweighted network
get_shortest_distances( net.matrix, source.nodes = rep_len(TRUE, dim(net.matrix)[1]) )
net.matrix |
Logical adjacency matrix of given unweighted network |
source.nodes |
Logical vector to indicate the source nodes that need to calculate the shortest distances |
This function calculates all pairs of shortest distances of unweighted network by using breadth-first-search (BFS) algorithm.
This function will return the shortest distance matrix, where the element
[i, j]
is the shortest distance between node i and j. Value -1 means unreachable.
If source.nodes[i]
equals FALSE, the shortest distance from i to other nodes
will not be calculated and the row i will be all -1.
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