Description Usage Arguments Details Value Author(s) See Also Examples
queryg
is a general function for querying a graph object,
specifically graphs as created with newug
and newdag
.
1  querygraph(object, op, set = NULL, set2 = NULL, set3 = NULL)

object 
A graph object; i.e. either an unidrected graph (ugsh) or a directed acyclic graph (dagsh) 
op 
The query operation, see 'details' below. 
set,set2,set3 
Possible arguments to a graph query of type 
The op
can be:
adj: Nodes adjacant to set
an: Ancestors of set
ancestralGraph: Ancestral graph induced by set
ancestralSet: Ancestral set of set
cl: Closure of set
ch: Children of set
maxClique: The cliques
connectedComp The connected components
edges: Edges of graph
ne: Neighbours of set
nodes: Nodes of graph
is.complete:
edgeList
vpar
is.simplicial:
is.triangulated:
pa: Parents of set
separates: Is set
and set2
separated by set3
simplicialNodes: The simplicial nodes of graph
subgraph: Subgraph induced by set
Depending on the type
, the output will be either a new graph or
a vector or a list.
S<f8>ren H<f8>jsgaard, [email protected]
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18  ug0 < ug(~a:b, ~b:c:d, ~e)
querygraph(ug0, "nodes")
querygraph(ug0, "edges")
querygraph(ug0, "subgraph", c("b","c","d","e"))
querygraph(ug0, "adj", "c")
querygraph(ug0, "closure", "c")
querygraph(ug0, "is.simplicial", "b")
querygraph(ug0, "simplicialNodes")
querygraph(ug0, "is.complete")
querygraph(ug0, "is.complete", c("b","c","d"))
querygraph(ug0, "maxClique")
querygraph(ug0, "is.triangulated")
querygraph(ug0, "is.decomposition", "a","d",c("b","c"))

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