rugarch:out of sample

1. Please go through the documentation and extensive examples in the 
inst folder of the package.
2. If after doing so you have not understood something or suspect a bug,
put all you questions in ONE email to the list (for usage questions) or 
the developer (if related to a suspected bug) with a minimally 
REPRODUCIBLE example.

Thanks,
Alexios

Dear all,

How is the specification of the out of sample done if one wants to carry
out the out of sample analysis using the rugarch.
by default out.sample=0
Kind regards
Papa