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Re: [igraph] igraph+dimacs

From: Gábor Csárdi
Subject: Re: [igraph] igraph+dimacs
Date: Thu, 4 Aug 2011 10:43:35 -0400

DIMACS itself is not a single file format, but a collection of file
formats. igraph supports the 'edge' and 'max' DIMACS file formats, or
problems, as DIMACS calls them. If you send me your file, then I can
see how similar it is to the supported ones. You can send a different
file in the same format, if you want to keep it private, or send it to
my private address.


On Thu, Aug 4, 2011 at 10:39 AM,  <address@hidden> wrote:
> I seem to be having trouble reading a DIMACS file with the R version of
> igraph:
>> lost_sole <- read.graph("shoes.dimacs", format="dimacs")
> Error in read.graph.dimacs(file, ...) :
>   At foreign.c:767 : Unknown problem type, should be 'edge' or 'max', Parse
> error
> -- R version 2.13.0 (2011-04-13)
> -- igraph_0.5.5-2.tgz
> I'm not sure if it's an igraph problem or a problem with the DIMACS file.
>  FWIW- others are using the same DIMACS file using other programs.
> Does anyone have an experience with DIMACS files and igraph and might be
> able to provide a test file/script to check my install.
> or any other suggestions regarding what may be going on?
> Thanks!
> _______________________________________________
> igraph-help mailing list
> address@hidden
> https://lists.nongnu.org/mailman/listinfo/igraph-help

Gabor Csardi <address@hidden>     MTA KFKI RMKI

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