While running simulations with the development version of OpenMx, I ran into an interesting error:
Error in runHelper(model, frontendStart, intervals, silent, suppressWarnings, :
NLOPT unrecognized error -1; please report to developers
It is somewhat difficult to replicate and it took some time to put together the attached example. As you may see in the attached, I read in the same dataset and fit the same model 10 times, obtaining likelihood-based CIs each time for a single parameter. The error only shows up for some replications.
Thought you all should know!
In the meantime, I have no problem rolling back to a more stable version, provided that the boundAdj argument is available for mxCI (even if in this particular example it's not necessary)