[R-SIG-Mac] Rgraphviz neato layout crashes

[Kasper Daniel Hansen]

What I am going to say is not really helpful :) When I tried  
installing graphviz some time ago (around Christmas) I had big  
problems getting it to work. In the end I settled for v2.7 (I guess  
that was before 2.8 came out, the odd numbers are devel versions). I  
remember some of my attempts actually compiled, Rgraphviz compiled  
but I was unable to plot like you are (although I do not remember if  
I used neato or something else). So I have encountered the problem of  
a crash even with successful installations of graphviz/Rgraphviz. I  
looked at my old config-log and the only thing (aside from mandirs  
and such) is --disable-codegens which - again as far as I recall -  
was there just to ensure compilation.

/Kasper

On Apr 20, 2006, at 5:27 PM, Julin Maloof wrote:

> Hello,
>
> I am having a problem with Rgraphviz
>
> When I try to plot a graph using the "neato" layout, R crashes with  
> a bus error.  I am posting to this list because I can not reproduce  
> this on a Windows machine.  (but I can reproduce it on multiple macs).
>
> This crash can be reproduced just following the example at the  
> beginning of the Rgraphviz vignette.  Has anyone else had this  
> problem?  Any suggested solutions?
>
> Thanks,
>
> Julin
>
> ps OS 10.4.6, Dual 2.5 G5, 4GB RAM.  Graphviz 2.8, compiled from  
> source.  Rgraphviz 1.8, compiled from source.
> pps crash happens both from R.app using quartz and from command  
> line or EMACS using X11.
>
>
>
>> version
>          _
> platform powerpc-apple-darwin7.9.0
> arch     powerpc
> os       darwin7.9.0
> system   powerpc, darwin7.9.0
> status
> major    2
> minor    2.1
> year     2005
> month    12
> day      20
> svn rev  36812
> language R
>> library(Rgraphviz)
> Loading required package: graph
> Loading required package: cluster
> Loading required package: Ruuid
>> set.seed(123)
>> V <- letters[1:10]
>> M <- 1:4
>> g1 <- randomGraph(V,M,0.2)
>> g1
> A graphNEL graph with undirected edges
> Number of Nodes = 10
> Number of Edges = 16
>> z <- plot(g1)
>> #works!
>> z <- plot(g1,"neato") # will crash...
> Bus error
> Kaweah:~ jmaloof$
> -- 
> Julin Maloof
> Assistant Professor
> Section of Plant Biology
> University of California, Davis
> 1 Shields Ave
> Davis, CA, 95616
>
> voice: (530) 752-8077
> fax:   (530) 752-5410
>
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