[BioC] Rgraphviz: how to read a \"dot\" file?

[Sam [guest]]

The Rgraphviz package index says nothing about reading "dot" files.
(it has "toFile" to write them but no fromFile).
How do I create an Ragraph object?
(either by reading a dot file or from a list of edges with weights and
vertices with names and other attributes).


 -- output of sessionInfo(): 


Thanks!

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