network visualization linux

Nisa Bakkalbasi nisa.bakkalbasi at YALE.EDU
Tue Nov 14 16:19:33 EST 2006

I'd like to make a comment on R's sna package and memory problems for 
clarification. The memory problems I encountered are not related to 
plotting a large network or visualizing network data, but it was 
related to computing one metric only; that is "betweenness."  This 
issue has been discussed at the recent ASIST meeting and colleagues 
offered alternative approaches.

Nisa Bakkalbasi
Electronic Collections Librarian
Yale University Library
130 Wall Street, P.O. Box 208240
New Haven, CT  06520-8240
Phone: (203) 436-2851  |  Fax: (203) 432-8527

At 03:39 PM 11/14/2006, Elijah Wright wrote:

>Adminstrative info for SIGMETRICS (for example unsubscribe):
>We've used R's sna package locally to generate lots (and lots, and 
>lots, and lots...) of graph plots.  It works well, particularly for 
>work with data that may not conform to people's initial expectations 
>of what relations may be...
>However... it is sometimes a bit memory-hungry.  :)  You are correct 
>in asserting that you will need quite a bit of memory to plot a 
>large network - I've used numerous 16GB and 32GB machines running 
>Sun's Solaris to plot absurdly-sized networks with what I would call 
>a good degree of success.
>All of the standard tricks for working with large matrices work 
>quite well with R-sna.  [In effect, there's a real payoff for 
>properly trimming or partitioning your data as early in the analysis 
>process as possible...] Getting to know the other R packages that 
>deal with matrix-oriented data is also highly recommended, for those 
>who want to make serious use of 'sna'.  Several of the more useful 
>tools are not actually *in* the sna package, but found inside other 
>toolkits that are packaged for R.
>A few of Katy Borner's students have simply run Pajek under Wine; 
>that seems to work well enough.  I don't think I've seen anyone run 
>UCINET under Wine, but I suppose that should also be possible.
>On Tue, 14 Nov 2006, Thomas Krichel wrote:
>>Date: Tue, 14 Nov 2006 13:36:27 -0600
>>From: Thomas Krichel <krichel at OPENLIB.ORG>
>>Reply-To: ASIS&T Special Interest Group on Metrics
>>Subject: Re: [SIGMETRICS] network visualization linux
>>Adminstrative info for SIGMETRICS (for example unsubscribe):
>>  Frank Havemann writes
>>>I recommend the sna-package of R:
>>  I have had problems with sna and had to abandon it to
>>  calculate my 4k+ author network paths. I kept running into
>>  memory problems even on my HP Proliant 8 processor box
>>  with close to 4G of memory. I ended up having to write
>>  my own software to do the calculations. I have not used its
>>  vizualization features.
>>  But that was last year. Maybe this is fixed now.
>>  Cheers,
>>  Thomas Krichel                             mailto:krichel at
>>                                    RePEc:per:1965-06-05:thomas_krichel
>>                                                skype id: thomaskrichel

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