Re: [Rd] Links to non-vignette documentation

From: Prof Brian Ripley <>
Date: Thu 23 Feb 2006 - 21:37:58 GMT

On Thu, 23 Feb 2006, hadley wickham wrote:

>> I think you need to define `vignette'. I understand the usage to mean an
>> Sweave file. There are ways to include other PDF files, and you can write
>> your own index file. R can't do that for you as it cannot read PDF (it
>> can read Sweave).
> How can I write an index file with a pointer to my pdf? Should I
> provide a code snippet to run system(paste(getOption("pdfviewer"),
> system.file("doc/my.pdf", package="mypackage"), "&"))?

Just add a hyperlink in inst/doc/index.html to foo.pdf and let the browser do the rest. The grid/doc/index.html is a suitable template.

> Perhaps my problem is thinking of a vignette as a "A brief verbal
> description of a person, place, etc.; a short descriptive or evocative
> episode in a play, etc." rather than a Sweave document.
>> I am not aware of any other sort of `package help index', although one
>> could arge the toss about Compiled HTML.
> What about (eg.) help(package=grid)? This is where vignettes are
> listed by name (and location). I would like to be able put my pdf
> into a similar list.

Which is really library(help=grid). Vignettes there are a recent addition, and we need the author to tell us. It looks to me as if that means strict-sense vignettes (it gets the info from the vignette metadata). If there were a mechanism for authors to list PDF docs and titles in a two-column format in some file in inst/docs, the installation tools could provide more support. (I think this is Kurt's area.)

[I am not arguing that this could not be better documented, but I think most things are possible by digging around.]

Brian D. Ripley,        
Professor of Applied Statistics,
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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