On Thu, 2 Sep 2004, Deepayan Sarkar wrote:
>
> The lattice package has a namespace, so it has a .onLoad function. I
> also keep around a .First.lib, for use during development, when I
> temporarily delete the NAMESPACE file.
>
> When using a namespace, I used to comment out the .First.lib function.
> However, that seems unnecessary since it's not executed anyway. Is this
> intended (and dependable) behaviour?
Yes.
> (If so, this should probably be mentioned in ?library, which currently
> says
>
> '.First.lib' is called when a package is loaded;
'.Last.lib' is
> called when a package is detached.
>
> without any mention of namespaces).
[.Last.lib is called when a package with a namespace is detached.]
Indeed, but see `Writing R Extensions', under `Load hooks', and
Various @R{} functions in a package can be used to initialize and clean
up. For packages without a name space, these are @code{.First.lib} and
@code{.Last.lib}. (For packages with a name space, @xref{Load hooks}.)
I'll update library.Rd to mention this and user hooks.
--
Brian D. Ripley, ripley@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595