Using other peoples packages from within C-based R-extension

Hello, 

OK, thanks for the information...


On Tue, Apr 24, 2012 at 12:02:33PM -0500, Dirk Eddelbuettel wrote:

On 24 April 2012 at 12:39, Duncan Murdoch wrote:
| On 24/04/2012 12:31 PM, oliver wrote:
| > Hello,
| >
| > what if I want to write a package mixed R/C-extension
| > and want to use code that is provided by other peoples packages?
| >
| > How for example can I use one of the provided wavelet packages
| > from within my C-based R-extension?
| >
| > Somehow I would need to load the other packages and have access to
the
| > functions they provide.
| > I mean I don't want to use the other packages via R-level, but
directly
| > on the C-layer. Something like shared libs (dlopen and such stuff)
| > but via R-API.
| >
| > Is there a general aproach to this, and how to do it?
| 
| See "Registering native routines" in the Writing R Extensions manual.

And there are over 120 packages providing access:

   CITAN Cubist GOSim KernSmooth MASS MSBVAR Matrix NetComp PMA
PopGenome
   QuACN RCurl RODBC RTextTools Rcpp Rigroup Rlabkey Rmosek Rmpfr Rook
Rserve
   Runuran SASxport SMCP SoDA TraMineR XML actuar adaptivetau akima
aster
   aster2 bcv bda blme boolfun bstats canvas caret catnet cgh chron
class
   climdex.pcic clpAPI clue cluster copula cplexAPI cplm datamap devEMF
   edesign expm fastICA fastcluster ff flsa foreign fracdiff
fuzzyRankTests
   gb glpkAPI gmp gputools grpreg gsmoothr heavy hypred ifs ifultools
int64
   interactivity kza lattice lfe lme4 locfit lpSolveAPI markdown mgcv
minqa
   mugnet ncvreg nlme nnet pedigreemm phangorn phmm potts ppstat qtbase
   qtpaint quadprog rPorta randtoolbox rcdd rdyncall rgeos rggobi
rmongodb
   rngWELL robustbase rpart rphast rrp rtfbs sde sensitivityPStrat sp
spatial
   spdep spsurvey spt tree tripack uncompress vines xlsReadWrite xts
yaml zoo

[...]

But no wavelets stuff... (?)
(It was more than an example, I'm look for wavelet decompositioning.)

Matrix and lme4 is the prototypical example by R Core, MASS also
provides
something.  I'd probably start with zoo and xts ...

[...]

You mean with "start with" that I could look how to allow exporting
for my own package?

At the moment I'm rather looking for how to import symbols and access
fnuctionality
of othera people's packages ...


Ciao,
  Oliver