[Rsiena-help] Interaction effect specification for bipartite networks

[Ruth M. Ripley]

Dear Marco,

I have tried a similar model myself which fails... I know what is wrong:
user specified interactions will not work with multiple processes. It will
take me a little while to fix it, and it is late here. I will try
tomorrow!

Regards,

Ruth
--
Ruth M. Ripley,                         Email:ruth at stats.ox.ac.uk
Dept. of Statistics,                    http://www.stats.ox.ac.uk/~ruth/
University of Oxford,                   Tel:   01865 282851
1 South Parks Road, Oxford OX1 3TG, UK  Fax:   01865 272595


On Tue, 16 Mar 2010, marco tonellato wrote:

> Dear Ruth,
>
> now that I changed the specification as 'ego' effect I could start the
> model, but R then crashed.
>
> This is the command I used and the output I got after the crash:
>
> >
> myeff<-includeInteraction(myeff,egoX,outActSqrt,interaction1="dev.ten",include=TRUE)
>                                         name shortName type interaction1
> collaboration.objEffects.138.1 collaboration   unspInt eval
>                                interaction2 include effect1 effect2 effect3
> collaboration.objEffects.138.1                 TRUE      24      17       0
>
> > ans <- siena07(mymodel, data=mydata, effects=myeff, batch=TRUE,
> verbose=TRUE, nbrNodes=3, useCluster=TRUE, initC=TRUE)
>
> Stochastic approximation algorithm.
> Initial value for gain parameter = 0.3464102.
> Start of the algorithm.
> Target function values are
>   1.  904.00000   2.   89.00000   3. 1009.38249   4. 5637.09646   5.
> -23.27556
>   6.  354.12048   7.   72.53726   8.  221.19411   9.  -16.00520  10.
> 2756.24970
>  11. 2756.24970
>
> Start phase 0
> theta: -1.55  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00  0.00
> Current parameter values:
> -1.547494  0.000000  0.000000  0.000000  0.000000  0.000000  0.000000
> 0.000000
>  0.000000  0.000000  0.000000
>
> Start phase 1
> Error in unserialize(node$con) : error reading from connection
>
>
> Best regards,
>
> Marco
>
> On Tue, Mar 16, 2010 at 11:28 PM, Ruth M. Ripley <ruth at stats.ox.ac.uk>wrote:
>
> > Dear Marco,
> >
> > Sorry, I think the information I have coded in the package is incorrect. I
> > think the egoX should be an 'ego' effect not a 'dyadic': if you change
> > this in your effects object it should be OK.
> >
> > I will fix it in the package but it will be a couple of days before it is
> > available in the binary on R-forge.
> >
> > Regards,
> >
> > Ruth
> > --
> > Ruth M. Ripley,                         Email:ruth at stats.ox.ac.uk<Email%3Aruth at stats.ox.ac.uk>
> > Dept. of Statistics,                    http://www.stats.ox.ac.uk/~ruth/<http://www.stats.ox.ac.uk/%7Eruth/>
> > University of Oxford,                   Tel:   01865 282851
> > 1 South Parks Road, Oxford OX1 3TG, UK  Fax:   01865 272595
> >
> >
> > On Tue, 16 Mar 2010, marco tonellato wrote:
> >
> > > Dear All,
> > >
> > > I'm currently modeling a bipartite network of 83 x 577 nodes with RSiena
> > > (revision 0.61). I was able to estimate significant and convergent
> > > parameters for the endogenous part and the main effects of 5 attributes
> > > (related to either node set).
> > >
> > > I now have a problem including interaction effects. In particular I would
> > > like to include the interaction of a constant binary covariate (which
> > > captures whether or not my nodes of the first mode have tenure) with the
> > > outdegree activity.
> > >
> > > Both using the tcl/tk initerface and entering (also with RSienaTest
r62):
> > >
> > >
> > myeff<-includeInteraction(myeff,egoX,outActSqrt,interaction1="dev.ten",include=TRUE)
> > >
> > > R returned this error message:
> > >
> > > invalid interaction specification:"must be at least one ego or both
> > dyadic
> > > effects".
> > >
> > > Finally, I also noticed that the "interactionType"  attribute of the
> > tenure
> > > egoX effect is set as dyadic, whereas it is left unspecified for all the
> > > altX effects related to the other attributes I measured for the nodes of
> > the
> > > second mode.
> > >
> > > Am I doing something wrong? What should I do to get the interaction
> > effects
> > > working?
> > > Thanks a lot,
> > >
> > > Marco
> > >
> >
> >
>