Get the ids of all the edges that are valid in a network
Returns a vector of valid edge ids (corresponding to non-NULL edges) for a network that may have some deleted edges.
valid.eids(x)
x |
a network object, possibly with some deleted edges. |
The edge ids used in the network package are positional indices on the
internal "mel" list. When edges are removed using delete.edges
NULL elements are left on the list. The function valid.eids
returns the ids of all the valid (non-null) edge ids for its network
argument.
a vector of integer ids corresponding to the non-null edges in x
If it is known that x has no deleted edges, seq_along(x$mel) is
a faster way to generate the sequence of possible edge ids.
skyebend
See also delete.edges
net<-network.initialize(100) add.edges(net,1:99,2:100) delete.edges(net,eid=5:95) # get the ids of the non-deleted edges valid.eids(net)
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