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

[Kasper Daniel Hansen]

Thanks Vince and Martin

Kasper

On Mon, Oct 15, 2012 at 9:47 PM, Martin Morgan <mtmorgan at fhcrc.org> wrote:
> On 10/15/2012 01:36 PM, Vincent Carey wrote:
>>
>> try agread()
>>
>> probably needs more doc
>
>
> I added some to the devel version of Rgraphviz, including:
>
> Read / write Ragraph objects
>
> Description:
>
>      These functions will write an 'Ragraph' object to or from a file.
>
> Usage:
>
>      agwrite(graph, filename)
>      agread(filename, layoutType="dot", layout=TRUE)
>
> Arguments:
>
>    graph: An object of class 'Ragraph'
>
> filename: The input or output filename
>
> layoutType: character(1) specifying the format of the input file. Must
>           be one of 'graphvizCapabilities()$layoutTypes'.
>
>   layout: logical(1) indicating whether 'graphLayout' is to be called
>           on the result of file input.
>
> Details:
>
>      These function are wrappers to agwrite() and agread() calls in
>      Graphviz.
>
> Author(s):
>
>      Jeff Gentry
>
> See Also:
>
>      'agopen', 'agread'
>
> Examples:
>
>      V <- letters[1:10]
>      M <- 1:4
>      g1 <- randomGraph(V, M, .2)
>      z <- agopen(g1, "foo", layout=FALSE) ## default layoutType 'dot'
>      file <- tempfile()
>      agwrite(z, file)
>
>
>      ## supported input types
>      graphvizCapabilities()$layoutTypes
>      g2 <- agread(file, layout=TRUE)
>      if (interactive())
>         plot(g2)
>
>
>>
>> On Mon, Oct 15, 2012 at 4:16 PM, Sam [guest] <guest at bioconductor.org>
>> wrote:
>>
>>>
>>> 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!
>>>
>>> --
>>> Sent via the guest posting facility at bioconductor.org.
>>>
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>>
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>>
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>
>
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