[R] linking vignettes in a man page

[Christophe Dutang]

Dear list,

How can I link a vignette of a package in a man page (Rd files)?

I try \link[=pkgname/doc/filename]{a name} without success. 

The link gives the following error message: Only help files, NEWS, DESCRIPTION and files under doc/ and demo/ in a package can be viewed

Thanks in advance

Kind regards, Christophe
---------------------------------------
Christophe Dutang
LMM, UdM, Le Mans, France
web: http://dutangc.free.fr