Hi Martin,

the thing I would try first is eliminating the '~' character from the
file name, that sometimes does not work on a Mac, I am not sure why.
Please let me know if the problem still persists.

Thanks,
Gabor

On Wed, Sep 12, 2012 at 7:29 PM, Martin J Reed <[email protected]> wrote:
> Hi,
>
> I have a problem with graph read.graph() in a Mac (but the same code R and
> igraph version in Windows does work).
>
> In a Mac I have:
>
> read.graph("~/tmp/simple.graphml",format="graphml")
> Error in read.graph.graphml(file, ...) :
>   At rinterface.c:4962 : Cannot open GraphML file, File operation error
>
> Under Windows it reads it in OK.
>
> I am running Mac MountainLion, R 2.15.1, igraph 0.6.2
>
> Tested on a sample graphml file  from
>
> http://graphml.graphdrawing.org/primer/simple.graphml
>
> and it seems to happen for any graphml (or gml) file that I try.
>
> Looking back through the list it seems there was a problem in the past with
> encoding so I converted to utf-8 but it does not help.
>
> I am trying to avoid loading a debugger and hope that someone else has come
> across this…
>
> Martin Reed
>
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>



-- 
Gabor Csardi <[email protected]>     MTA KFKI RMKI

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