[Rcpp-devel] Rcpp::binding_not_found error

[Romain Francois]

Le 24/09/10 13:31, Alessandro Torrisi a écrit :
> Thanks :-)
>
> Just for full information this is the content of my object:
>
>          vector<double> nav;
>          vector< vector<double> > cashFlows;
>          string creationDate;
>          string activationDate;
>          string finalDate;
>          string benchmark;
>          vector<string> dates;
>          vector<string> datesBmk;
>          vector< vector<double> > indexesBmk;
>          vector< vector<double> > weightsBmk;
>          double start;
>          string type;
>
> Are those objects automatically wrapped by Rcpp ?

yep.

note that vector< vector<double> > is converted into a list of numeric 
vectors.

> My environment is Linux Ubuntu 32 bit with R version 2.11.1 (2010-05-31).
> Do you need more info ?

What versions of Rcpp and RInside are you using ?

It would be useful if you can provide a small reproducible example so 
that we can debug it on our end.

> Thanks in advance,
> Alex
>
> On Fri, Sep 24, 2010 at 1:18 PM, Romain Francois
> <romain at r-enthusiasts.com <mailto:romain at r-enthusiasts.com>> wrote:
>
>     Le 24/09/10 13:07, Alessandro Torrisi a écrit :
>
>         Hi!
>
>         I'm new to the group, to rcpp and to C++ also :-P
>
>
>     welcome.
>
>
>         I'm trying to embed R in a little program which loads a txt
>         file, parses
>         it into an object and calls a function developed by our R coders.
>
>         What I aim to do is to move one of our actual Java procedures
>         (built on
>         Java/Rserve architecture) to C++/RInside/Rcpp, I think we could
>         have lot
>         of improvements in this way.
>
>         This is a snippet of the procedure:
>
>              R["nav_in"] = Rcpp::wrap(input.nav);
>              R["cashFlows_in"] = Rcpp::wrap(input.cashFlows);
>              R["dates_in"] = Rcpp::wrap(input.dates);
>              R["indexesBmk_in"] = Rcpp::wrap(input.indexesBmk);
>              R["weightsBmk_in"] = Rcpp::wrap(input.weightsBmk);
>              R["benchmark_in"] = Rcpp::wrap(input.benchmark);
>              R["datesBmk_in"] = Rcpp::wrap(input.datesBmk);
>              R["creationDate_in"] = Rcpp::wrap(input.creationDate);
>              R["activationDate_in"] = Rcpp::wrap(input.activationDate);
>              R["finalDate_in"] = Rcpp::wrap(input.finalDate);
>              R["start_in"] = Rcpp::wrap(input.start);
>              R["type_in"] = Rcpp::wrap(input.type);
>
>
>     I think the Rcpp::wrap is redundant, you could e.g. write :
>
>     R["nav_in"] = input.nav ;
>
>
>              SEXP res;
>
>              string evalstr = "res <- portfolioBenchmark(nav_in,
>         cashFlows_in,
>         dates_in, indexesBmk_in, weightsBmk_in, benchmark_in, datesBmk_in,
>         creationDate_in, activationDate_in, finalDate_in, start_in,
>         type_in); res";
>              res = R.parseEval(evalstr);
>
>         What I obtain is the following:
>
>         Errore in .Call("R_isMethodsDispatchOn", onOff, PACKAGE = "base");
>             Numero di argomenti errato (2), ce ne vogliono 1 per
>         R_isMethodsDispatchOn
>         terminate called after throwing an instance of
>         'Rcpp::binding_not_found'
>         what(): binding not found: '.AutoloadEnv'
>         Aborted
>
>         Excuse for the message, which is an Italian/English mix...
>         What is this error about ?
>
>
>     Which platform are you using ?
>
>     There seem to be an initialization problem, which I think I have
>     only seen on windows so far, hence my question.
>
>
>     And then... the result of the
>
>         "portfolioBenchmark" function should be a list..How can I
>         convert the
>         returned SEXP res into a list ?
>
>
>     You could do this I suppose:
>
>     Rcpp::List mylist( res ) ;
>
>
>         Thanks in advance,
>         Alessandro Torrisi.

-- 
Romain Francois
Professional R Enthusiast
+33(0) 6 28 91 30 30
http://romainfrancois.blog.free.fr
|- http://bit.ly/cCmbgg : Rcpp 0.8.6
|- http://bit.ly/bzoWrs : Rcpp svn revision 2000
`- http://bit.ly/b8VNE2 : Rcpp at LondonR, oct 5th