Having followed the suggestion by Duncan, the shell returned literally
nothing. No error message and no *.so file anywhere on my HDD.
I also suspect that there is something wrong with my compiler setup, which I
have struggled with quite a while.
Maybe this is a good opportunity to write a less technical setup manual than
Appendix D in the Developers Guide, because I must have messed up
installation and setup.
Let me do my homework once more and see how it works. Is there a more easily
comprehensible step-by-step manual to get C++ compilation working with R?
Cheers,
Paul
On Dec 6, 2011 8:30 AM, "Duncan Murdoch" < <mailto:murdoch.dun...@gmail.com>
murdoch.dun...@gmail.com> wrote:
>
> On 05/12/2011 1:22 PM, Paul Viefers wrote:
>>
>> Dear all,
>>
>> running the example by D. Eddebuettel (
<http://dirk.eddelbuettel.com/blog/2011/04/23/>
http://dirk.eddelbuettel.com/blog/2011/04/23/) I get an error message.
Specifically, the R code I was taking from the above example is
>>
>> ### BEGIN EXAMPLE ###
>>
>> suppressMessages(require(RcppArmadillo))
>> suppressMessages(require(Rcpp))
>> suppressMessages(require(inline))
>> code<- '
>>arma::mat coeff = Rcpp::as(a);
>>arma::mat errors = Rcpp::as(e);
>>int m = errors.n_rows; int n = errors.n_cols;
>>arma::mat simdata(m,n);
>>simdata.row(0) = arma::zeros(1,n);
>>for (int row=1; row> simdata.row(row) = simdata.row(row-1)*trans(coeff)+errors.row(row);
>>}
>>return Rcpp::wrap(simdata);
>> '
>> ## create the compiled function
>> rcppSim<- cxxfunction(signature(a="numeric",e="numeric"),
>> code,plugin="RcppArmadillo")
>>
>> ### END OF EXAMPLE ###
>>
>> Executing this inside R, returned the following:
>>
>> ERROR(s) during compilation: source code errors or compiler configuration
errors!
>>
>> Program source:
>> 1:
>> 2: // includes from the plugin
>> 3: #include
>> 4: #include
>> 5:
>> 6:
>> 7: #ifndef BEGIN_RCPP
>> 8: #define BEGIN_RCPP
>> 9: #endif
>> 10:
>> 11: #ifndef END_RCPP
>> 12: #define END_RCPP
>> 13: #endif
>> 14:
>> 15: using namespace Rcpp;
>> 16:
>> 17:
>> 18: // user includes
>> 19:
>> 20:
>> 21: // declarations
>> 22: extern "C" {
>> 23: SEXP file33765791( SEXP a, SEXP e) ;
>> 24: }
>> 25:
>> 26: // definition
>> 27:
>> 28: SEXP file33765791( SEXP a, SEXP e ){
>> 29: BEGIN_RCPP
>> 30:
>> 31:arma::mat coeff = Rcpp::as(a);
>> 32:arma::mat errors = Rcpp::as(e);
>> 33:int m = errors.n_rows; int n = errors.n_cols;
>> 34:arma::mat simdata(m,n);
>> 35:simdata.row(0) = arma::zeros(1,n);
>> 36:for (int row=1; row> 37: simdata.row(row) =
simdata.row(row-1)*trans(coeff)+errors.row(row);
>> 38:}
>> 39:return Rcpp::wrap(simdata);
>> 40:
>> 41: END_RCPP
>> 42: }
>> 43:
>> 44:
>> Error in compileCode(f, code, language = language, verbose = verbose) :
>> Compilation ERROR, function(s)/method(s) not created!
>> Executing command 'C:/PROGRA~1/R/R-214~1.0/bin/i386/R CMD SHLIB
file33765791.cpp 2> file33765791.cpp.err.txt' returned status 1
>>
>> I am working under R 2.14.0 and as the pros among you might guess, I am
new to using the C++ interfaces within R. I think all I have to do is to
edit some settings on my Windows 7 machine here, but the error message is
too cryptic to me. Alas, I could also not find any thread or help topic that
deals with this online. I appreciate any direct reply or reference where I
can find a solution to this.
>> Please let me know in case I am leaving out some essential details here.
>
>
> If you put the program source into a file (e.g. fn.cpp) and in a Windows
cmd shell you run
>
> R CMD SHLIB fn.cpp
>
> what do you get? I would guess you've got a problem with your setup of
the compiler or other tools, and this would likely show it.
I don't think that will work because you need the appropriate -I option to
get the headers from the RcppArmadillo package. It may be easier to use the
RcppArmadillo.package.skeleton function to create a package.
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