Get children of nodes in a graph (nodes with directed edges pointing OUT
from the target nodes).
This is equivalent to neighbors(cg, nodes, mode = "out").
Usage
children(cg, nodes = NULL, index = NULL)
Value
Either a character vector of node names (if a single node is
requested) or a list of character vectors (if multiple nodes are requested).
Arguments
cg
A caugi object.
nodes
A vector of node names, a vector of unquoted
node names, or an expression combining these with + and c().