network visualization linux
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.
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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
>> <SIGMETRICS at LISTSERV.UTK.EDU>
>>To: SIGMETRICS at LISTSERV.UTK.EDU
>>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.
>> Thomas Krichel mailto:krichel at openlib.org
>> skype id: thomaskrichel
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