"Dr. Antonio Botelho de Sousa" wrote:
>
> One more time i need your help. I'm writing a book on medical statistics, and
> my print bureau wants me to send the files in PDF format, with crop marks.
> How can i insert crop marks in the post-script output of a Lyx file?
You can use the crop package. This is the description from CTAN:
Support for cropmarks.
A package providing corner marks for camera alignment as well as for
trimming paper stacks, and additional page information on every page if
required. Most
macros are easily adaptable to personal preferences.
Look at:
CTAN/macros/latex/contrib/supported/crop/
> Other question:
> How can i insert diacritical marks, like y-hat or x with a little bar over,
> like the sample mean?
You can try to type in math mode
\hat (space) y \bar (space) x
Hope it helps
> Thank for your help.
>
> Dr. Antonio Botelho de Sousa
> Portugal
