[Rcpp-devel] Rcpp::binding_not_found error
romain at r-enthusiasts.com
Fri Sep 24 13:18:53 CEST 2010
Le 24/09/10 13:07, Alessandro Torrisi a écrit :
> I'm new to the group, to rcpp and to C++ also :-P
> 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
> terminate called after throwing an instance of 'Rcpp::binding_not_found'
> what(): binding not found: '.AutoloadEnv'
> 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.
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