A function to obtain a Ragraph object
This function will read in a graphNEL object and create a
Ragraph object, returning it for use in other functions. The
graph represented by the Ragraph can be laidout in various formats.
agopenSimple(graph, name, kind = NULL, edgeMode=edgemode(graph),
subGList=list(), recipEdges=c("combined", "distinct"))graph |
An object of class |
name |
The name of the |
kind |
The type of graph |
subGList |
A list describing subgraphs for the graph parameter |
edgeMode |
Whether the graph is directed or undirected |
recipEdges |
How to handle reciprocated edges, defaults to
|
graph is from the package graph-class.
The edgeMode argument specifies whether the graph is to be laid
out with directed or undirected edges. This parameter defaults to the
edgemode of the graph argument.
The kind parameter works as follows:
Determine the direction of the graph from the graph
object. This is the default and the recommended method.
An undirected graph
A directed graph
A strict undirected graph
A strict directed graph
Strict graphs do not allow self arcs or multi-edges.
The subGList parameter is a list describing any subgraphs,
where each element represents a subgraph and is itself a list with up
to three elements. The first element, graph is required and
contains the actual graph object for the subgraph. The second
element, cluster is a logical value indicating if this is a
cluster or a subgraph (a value of TRUE indicates
a cluster, which is also the default value if this element is not
specified). In Graphviz, subgraphs are more of an organizational
mechanism, whereas clusters are laid out separately from the main
graph and then later inserted. The last element of the list,
attrs is used if there are any attributes for this subgraph.
This is a named vector where the names are the attributes and the
elements are the values for those attributes.
The recipEdges argument can be used to specify how to handle
reciprocal edges. The default value, combined will combine any
reciprocated edges into a single edge (and if the graph is directed,
will by default place an arrowhead on both ends of the edge), while
the other option is distinct which will draw to separate
edges. Note that in the case of an undirected graph, every edge of a
graphNEL is going to be reciprocal due to implementation issues.
An object of class Ragraph
Li Long <li.long@isb-sib.ch>
http://www.research.att.com/sw/tools/graphviz/
set.seed(123)
V <- letters[1:10]
M <- 1:4
g1 <- randomGraph(V, M, .2)
z <- agopenSimple(g1,name="foo")
if(graphvizVersion() >= "2.10") {
## This example will only run with Graphviz >= 2.10
plot(z, "twopi")
}Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.