[Rsiena-help] crash during estimation of bipartite behaviour model

[Ruth Ripley]

Marco,

Yes, the message is from the routine trying to calculate the derivative 
matrix. The error usually arises due to problems with the data. Clues to 
the cause may appear in reports on the data, or messages during the run. 
It might be worth checking the file cluster.out where sub processes will 
write messages.

If you can run a model with no effects other than the defaults  the the 
problem could be due to collinearity in effects.

If you cannot figure it out, and want me to look at the data, please 
sent it to me direct.

Regards,

Ruth

On 28/11/2011 03:52, Nate Doogan wrote:
> Hi Marco.
>
> I'll throw out a guess. The dfra object is probably the initial
> derivative estimate. If a value in the matrix is missing, I guess it
> means the partial derivative could not be estimated. Maybe this is
> because of something funny in your covariate coding. Perhaps the first
> thing to do is look for errors in your data. I could also imagine that a
> lack of variability in a covariate could cause some issues.
>
> Good luck. I hope some more informed guesses will emerge.
>
> Nathan Doogan
>
>
> On Sun, Nov 27, 2011 at 10:24 PM, marco tonellato <m.tonellato at gmail.com
> <mailto:m.tonellato at gmail.com>> wrote:
>
>     Dear All,
>
>     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:
>
>     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:
>
>     Error in if (dfra[i, i] < 0) { : missing value where TRUE/FALSE needed
>
>     Can you please help me on this?
>
>     Thanks a lot.
>     Marco
>
>
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