Nathan,
Two more comments. First, I am not sure you can even do what you did. When I
call Rcpp.armadillo.package() as (where I omit the R file argument -- no
point including a file loading inline in a package, or redefining these
functions)
RcppArmadillo.package.skeleton(name='inlineExample',list=c('plus.two.cpp','plus.two.r'))
I get
R>
RcppArmadillo.package.skeleton(name='inlineExample',list=c('plus.two.cpp','plus.two.r'))
Creating directories ...
Creating DESCRIPTION ...
Creating NAMESPACE ...
Creating Read-and-delete-me ...
Saving functions and data ...
Making help files ...
Done.
Further steps are described in './inlineExample/Read-and-delete-me'.
Adding RcppArmadillo settings
>> added Depends: Rcpp, RcppArmadillo
>> added LinkingTo: Rcpp, RcppArmadillo
>> added useDynLib directive to NAMESPACE
>> added Makevars file with Rcpp settings
>> added Makevars.win file with RcppArmadillo settings
>> added example header file using Rcpp/RcppArmadillo
>> added example src file using armadillo classes
>> added example R file calling the C++ example
Warning message:
In dump(item, file = file.path(code_dir, sprintf("%s.R", list0[item]))) :
deparse of an S4 object will not be source()able
R>
indicating the result from cxxfunction() will not be representable. And
indeed:
edd@max:/tmp$ R CMD INSTALL inlineExample
* installing to library ‘/usr/local/lib/R/site-library’
* installing *source* package ‘inlineExample’ ...
** libs
ccache g++-4.6 -I/usr/share/R/include -DNDEBUG
-I"/usr/local/lib/R/site-library/Rcpp/include"
-I"/usr/local/lib/R/site-library/RcppArmadillo/include" -fpic -g -O0 -Wall
-c rcpparma_hello_world.cpp -o rcpparma_hello_world.o
g++-4.6 -shared -o inlineExample.so rcpparma_hello_world.o
-L/usr/local/lib/R/site-library/Rcpp/lib -lRcpp
-Wl,-rpath,/usr/local/lib/R/site-library/Rcpp/lib -llapack -lblas -lgfortran
-lm -lquadmath -L/usr/lib/R/lib -lR
installing to /usr/local/lib/R/site-library/inlineExample/libs
** R
Error in parse(outFile) : 3:21: unexpected '<'
2: structure(function (UmatrixR)
3: .Primitive(".Call")(<
^
ERROR: unable to collate and parse R files for package ‘inlineExample’
* removing ‘/usr/local/lib/R/site-library/inlineExample’
edd@max:/tmp$
That is is simply not supported. You have to subscribe your inline'd object
by hand.
Second, and as for the manual page leading to an error: we can reproduce that
via
package.skeleton(name='pkgskelExample',list=c('plus.two.r'))
which is free of any Rcpp-isms. So this appears to be "simply" a bug in R.
Dirk
--
Dirk Eddelbuettel | [email protected] | http://dirk.eddelbuettel.com
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