Dear All,<br><br>while running siena07 (RSiena rev=184 on a multi-core Linux-based machine) to estimate a coevolution network/behaviour model using bipartite networks, I encountered the following problem:<br><br>I specified the model with a dependent bipartite network (4 sparse matrices, 135x719 nodes), a bunch of strucural (cycle4, outActSqrt, inPopSqrt, outInAss) and individual covariates, a dependent behavioural variable (related to the first nodeset), and a bunch of behavioural parameters (avSim and outdegree, plus of course the defaults linear and quadratic shape). Then I launched siena07 and I was able to get through phase1, until this error message popped up:<br>
<br>Error in if (dfra[i, i] < 0) { : missing value where TRUE/FALSE needed<br><br>Can you please help me on this?<br><br>Thanks a lot.<br>Marco<br><br>