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***** To join INSNA, visit http://www.insna.org ***** Dear Thomas, I support what Xi writes. Read the Siena manual for more details! Further, you should note that 650 nodes with 8000 or 10,000 ties is a lot for Siena. It will take a lot of computing time; and to make the analysis meaningful you should have a lot of information concerning shared contexts, attributes, etc., as predictors for ties. We are working on a model that is more plausible also for larger networks but it will be a while before this is available. Apparently you have been using the older version Siena 3. Currently Siena is available as an R package, which also allows use of multiple processors, which will of course speed up computations. Information about the R version of Siena is at the Siena website, http://www.stats.ox.ac.uk/siena/ Best wishes, Tom Xi Zhu wrote: > ---------------------- Information from the mail header ----------------------- > Sender: Social Networks Discussion Forum <[log in to unmask]> > Poster: Xi Zhu <[log in to unmask]> > Subject: Re: Problems with StOCNET, SIENA Module > ------------------------------------------------------------------------------- > > --0016e6d7e744c6a93b047b6eb124 > Content-Type: text/plain; charset=ISO-8859-1 > > ***** To join INSNA, visit http://www.insna.org ***** > > Hi Thomas, > > As I know, StOCNet only takes adjacency matrices as input data. This means > that you need to recode the edgelist into adjacency matrices saved in ASCII > format (dat or txt files). Each network should be presented by n lines with > n integer numbers separated by blanks, and each line is ended by a hard > return. No node name should appear in an adjacency matrix. If you code node > names as integers, they will be considered as representing relationships. > > Since you want to do longditudinal network analysis (using SIENA), you also > need to save each observation of the network (e.g., network of each year) as > a separate file. StOCNet will allow you to use multiple observations in one > analytical session. > > You may want to read StOCNet and SIENA manuals. You can find them on StOCNet > website's Downloads section. Here is the URL link: > http://stat.gamma.rug.nl/stocnet/ > > Hope this would help. > > Best, > Xi > > On Wed, Dec 23, 2009 at 3:58 AM, Thomas Plotkowiak <[log in to unmask]> wrote: > >> ***** To join INSNA, visit http://www.insna.org ***** Hi, >> >> A few members of the SOCNET mailinglist pointed me to SIENA for >> longitudonal social network analysis. I don't know if my posting is right >> here, but I am having problems importing two nets of the size of approx 650 >> nodes into the module. >> >> When I do the SIENA data specification and add those two networks into >> "Dep. networks in seq. order" either nothing happens if I click ok, or I am >> getting the error "Access violation at adress 004E2E40 in module >> "StOCNet.exe. Read of adress 00DF0008." >> >> My data is saved in the edgelist format which is available since v. 4 and >> looks like this: >> >> BoehningB,michaeladam1984,1 >> Elke_Ferner,michaeladam1984,1 >> kaigersch,michaeladam1984,1 >> guentergloser,michaeladam1984,1 >> hubertus_heil,michaeladam1984,1 >> heinzpaula,michaeladam1984,1 >> ... >> approx 8k rows. >> >> Should i re-encode the node names into integers, or ist the edgelist >> support only beta? Maybe somebody had some luck with this. >> >> Cheers >> Thomas >> >> >> ------ >> Thomas Plotkowiak >> Research Assistant >> Institute for Media and Communications Management >> St. Gallen >> _____________________________________________________________________ >> SOCNET is a service of INSNA, the professional association for social >> network researchers (http://www.insna.org). To unsubscribe, send an email >> message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET >> in the body of the message. > > > > -- Tom A.B. Snijders Professor of Statistics in the Social Sciences University of Oxford Professor of Statistics and Methodology Department of Sociology, University of Groningen for addresses and telephone numbers: see http://stat.gamma.rug.nl/snijders/ _____________________________________________________________________ SOCNET is a service of INSNA, the professional association for social network researchers (http://www.insna.org). To unsubscribe, send an email message to [log in to unmask] containing the line UNSUBSCRIBE SOCNET in the body of the message.