HivePlotData object, especially one created fresh using
dot2HPD, generally contains a lot of hidden information about
the network described. This function can extract this hidden information.
This function has
options which are quite specific as to what they
do. The user can easily write new options and incorporate them.
This function can be called multiple times
using different options to gradually modify the
A character string giving the option desired. See Details for current options.
option = "rad <- tot.edge.count" This option looks through the
HivePlotData object and determines how many edges start or end on
each node (the "degree"). This value is then assigned to the radius for
option = "axis <- source.man.sink" This option
examines the nodes and corresponding edges in a
to determine if the node is a source, manager or sink. A source node only
has outgoing edges. A sink node only has incoming edges. A manager has
both. Hence, this option treats the
HivePlotData object as if it
were directed in that the first node of an edge in will be in
HPD$nodes$id1 and the second node of an edge will be in
HPD$nodes$id2. As a result, this option produces a hive plot with 3
axes (note: sources are on axis 1, sinks on axis 2, and managers on axis 3).
This concept is similar to the idea of
the internals are quite different. See also
dot2HPD for some
details about processing .dot files in an agnostic fashion.
option = "remove orphans" removes nodes that have degree zero (no
incoming or outgoing edges).
option = "remove zero edge"
removes edges with length zero. Such edges cause an error because
the spline cannot be drawn. This option combines the next two options.
option = "remove self edge" removes edges that
start and end on the same node.
option = "remove virtual edge" removes virtual edges which are
edges which involve different nodes but the nodes happen to be on the
the same axis at the same radius.
Bryan A. Hanson, DePauw University. [email protected]
See the vignette for an example of using this function. Use
browseVignettes("HiveR") to produce the vignette.
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