Add an arc to a DAG.
Function to conveniently add an arc to an existing DAG.
add.arc(dag, arc, type = 0)
dag |
The DAG to which an arc should be added. |
arc |
A vector of length 2, indicating from which node (first element) to
which node (second element) the arc is to go.
Note: the node numbering follows the numbering of the existing
DAG (as shown in |
type |
0 (=default) for a directed arc, 1 for an undirected association. |
A DAG with the arc (and corresponding arc.type) added, and with the
path-related variables (paths, pathsN, path.status, searchType, searchRes) removed.
Lutz P Breitling <l.breitling@posteo.de>
dag1<-demo.dag1(); dag1b<-add.arc(dag1, arc=c(2,4));
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