<span dir="ltr">Dear All,<br><br>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).<br><br>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.<br><br>Both using the tcl/tk initerface and entering (also with RSienaTest r62):<br><br>myeff<-includeInteraction(myeff,egoX,outActSqrt,interaction1="dev.ten",include=TRUE)<br>
<br>R returned this error message:<br><br>invalid interaction specification:"must be at least one ego or both dyadic effects".<br><br>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.<br><br>Am I doing something wrong? What should I do to get the interaction effects working?<br>Thanks a lot,<br><br>Marco</span>