edgeData-methods: Get and set attributes for the edges of a graph object
Description
Attributes of the edges of a graph can be accessed using
edgeData. The attributes must be defined using
edgeDataDefaults. You can ommit the from or
to argument to retrieve attribute values for all edges to
(respectively, from) a given node.
Usage
edgeData(self, from, to, attr)
edgeData(self, from, to, attr) <- value
Arguments
self
A graph-class instance
from
A character vector of node names
to
A character vector of node names
attr
A character vector of length one specifying the
name of a node attribute
value
An R object to store as the attribute value