What is this error

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Somebody
Somebody el 15 de En. de 2013
Hello everyone.
While using GlobalSearch in my global optimization routine, I incountered the following error:
Error using globalsearchnlp (line 110)
All elements of X must be real.
Im not able to open this file, "globalsearchnlp". What are these X? How can I fix it?
Many thanks!
  2 comentarios
Jonathan Epperl
Jonathan Epperl el 15 de En. de 2013
Try
dbstop if error
before you execute your global search. It'll stop in the debugger then, maybe that'll enable you to find out what's wrong.
Shashank Prasanna
Shashank Prasanna el 15 de En. de 2013
Any code examples you could provide?

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Walter Roberson
Walter Roberson el 15 de En. de 2013
Your function evaluations are sometimes producing imaginary numbers. Be sure to put in appropriate bounds on your function range.
  1 comentario
Somebody
Somebody el 18 de En. de 2013
Yes, thank you. I found the place where my code produced complex numbers.

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