[R] Error code from optim - "NEW_X" what does it mean?
Avraham.Adler at guycarp.com
Mon Jun 3 18:36:20 CEST 2013
Does anyone know what the error code "NEW_X" means in optim? Here is what the return looks like:
I have searched and found a couple of mentions without responses:
<https://stat.ethz.ch/pipermail/r-help/2011-September/290722.html> September 2011
<https://stat.ethz.ch/pipermail/r-devel/2013-May/066731.html> Full disclosure, this is my (unanswered) question on R-devel
I can only find one instance of the call in `optim.c` and I don't understand what it is doing.
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