[R] Error code from optim - "NEW_X" what does it mean?

[Jeff Newmiller]

Your email Is missing a reproducible example... very sub-optimal, likely to be ignored.
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"Adler, Avraham" <Avraham.Adler at guycarp.com> wrote:

>Hello.
>
>Does anyone know what the error code "NEW_X" means in optim? Here is
>what the return looks like:
>
>		$counts
>		function gradient
>			 302      302
>
>		$convergence
>		[1] 1
>
>		$message
>		[1] "NEW_X"
>
>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.
>
>Thank you,
>
>Avraham Adler
>
>
>
>
> 
>
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