Change the upstream/downstream direction of an SBN

Change the upstream/downstream direction of an SBN to either, reversed or undirected.

sbn_change_dir(g, method = c("rev", "undir"))

Arguments

g

a river network as an igraph object. Must be a downstream directed graph.

method

one of "rev" or "undir", determining what to convert the network to.

Value

A river network as an igraph object.

Examples

g <- sbn_create(10, 0.7)
sbn_change_dir(g, method = "rev")
#> IGRAPH 637f488 DN-- 10 9 -- 
#> + attr: name (v/c)
#> + edges from 637f488 (vertex names):
#> [1] 1->2  2->3  3->4  3->5  4->6  4->7  5->8  6->9  6->10