search for: charactervector

...r("foo")); > > mkChar() is creating a copy (if necessary) of "foo", managing it, and > returning a CHARSXP. Working through protection (which will likely be > your next obstacle ;) in this last example is a good exercise. In Rcpp, you would wrap up the STRSXP into a CharacterVector and then pull things in and out using indexing: Rcpp::CharacterVector aladdin(str_vec) ; std::string first = aladdin[0] ; aladdin[0] = "foobar" ; > There is a parallel operation VECTOR_ELT / SET_VECTOR_ELT for lists. Same thing for lists: Rcpp::List yasmine( some_vec_sxp ) ; doubl...

...4 -m64 -mtune=generic -c arrange.cpp -o arrange.o In file included from ../inst/include/dplyr.h:131, from arrange.cpp:1: ../inst/include/dplyr/DataFrameSubsetVisitors.h: In constructor ?dplyr::DataFrameSubsetVisitors::DataFrameSubsetVisitors(const Rcpp::DataFrame&, const Rcpp::CharacterVector&)?: ../inst/include/dplyr/DataFrameSubsetVisitors.h:40: warning: ?column? may be used uninitialized in this function g++ -m64 -I/usr/include/R -DNDEBUG -I../inst/include -DCOMPILING_DPLYR -I/usr/local/include -I"/usr/lib64/R/library/Rcpp/include" -I"/usr/lib64/R/library/BH/includ...

...eneric -c arrange.cpp -o arrange.o > In file included from ../inst/include/dplyr.h:131, > from arrange.cpp:1: > ../inst/include/dplyr/DataFrameSubsetVisitors.h: In constructor ?dplyr::DataFrameSubsetVisitors::DataFrameSubsetVisitors(const Rcpp::DataFrame&, const Rcpp::CharacterVector&)?: > ../inst/include/dplyr/DataFrameSubsetVisitors.h:40: warning: ?column? may be used uninitialized in this function > g++ -m64 -I/usr/include/R -DNDEBUG -I../inst/include -DCOMPILING_DPLYR -I/usr/local/include -I"/usr/lib64/R/library/Rcpp/include" -I"/usr/lib64/R/library...

Le lun. 9 d?c. 2019 ? 05:43, Tomas Kalibera <tomas.kalibera at gmail.com> a ?crit : > On 12/7/19 10:32 PM, Laurent Gautier wrote: > > Thanks for the quick response Tomas. > > The same error is indeed happening when trying to have a zero-length > variable name in an environment. The surprising bit is then "why is this > happening during parsing" (that is why

Hi all, I am not familiar with writing R extensions. In a C program, I want to create a SEXP and access it in embedded R. How to let the embedded engine know there's a new vector? For example, after creating a SEXP, parsing 'ls()' in embedded R and then evaluating, STRSXP returned will contain the name of the SEXP. Any help would be appreciated. Regards, Spiral [[alternative HTML

...o g++ -I/usr/share/R/include -DNDEBUG -I"/usr/lib/R/site-library/Rcpp/include" -fpic -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -g -c matrixToDataFrame.cpp -o matrixToDataFrame.o matrixToDataFrame.cpp: In function ?Rcpp::CharacterVector get_names(const Rcpp::Matrix<RTYPE>&, int)?: matrixToDataFrame.cpp:58:16: error: ?tfm? has not been declared names[i] = tfm::format( "V%d", (i+1) ) ; ^ matrixToDataFrame.cpp: In instantiation of ?Rcpp::List copy_columns(const Rcpp::Matrix<RTYPE>&am...

...include -DNDEBUG > -I"/usr/lib/R/site-library/Rcpp/include" -fpic -g -O2 > -fstack-protector --param=ssp-buffer-size=4 -Wformat > -Werror=format-security -D_FORTIFY_SOURCE=2 -g -c matrixToDataFrame.cpp > -o matrixToDataFrame.o > matrixToDataFrame.cpp: In function ?Rcpp::CharacterVector > get_names(const Rcpp::Matrix<RTYPE>&, int)?: > matrixToDataFrame.cpp:58:16: error: ?tfm? has not been declared > names[i] = tfm::format( "V%d", (i+1) ) ; > ^ > matrixToDataFrame.cpp: In instantiation of ?Rcpp::List > copy_columns(const Rc...

...-------------------------------------------------- INTSXP | Rcpp::IntegerVector REALSXP | Rcpp::NumericVector RAWSXP | Rcpp::RawVector LGLSXP | Rcpp::LogicalVector CPLXSXP | Rcpp::ComplexVector STRSXP | Rcpp::CharacterVector VECSXP | Rcpp::List EXPRSXP | Rcpp::ExpressionVector ---------------------------------------------------------- ENVSXP | Rcpp::Environment SYMSXP | Rcpp::Symbol ---------------------------------------------------------- CLOSXP | BUIL...

...-------------------------------------------------- INTSXP | Rcpp::IntegerVector REALSXP | Rcpp::NumericVector RAWSXP | Rcpp::RawVector LGLSXP | Rcpp::LogicalVector CPLXSXP | Rcpp::ComplexVector STRSXP | Rcpp::CharacterVector VECSXP | Rcpp::List EXPRSXP | Rcpp::ExpressionVector ---------------------------------------------------------- ENVSXP | Rcpp::Environment SYMSXP | Rcpp::Symbol ---------------------------------------------------------- CLOSXP | BUIL...

Hello, On Thursday, September 20, 2018 11:15:04 AM EDT Duncan Murdoch wrote: > On 20/09/2018 6:59 AM, Ralf Stubner wrote: > > On 9/20/18 1:43 AM, Carl Boettiger wrote: > >> For a well-tested C algorithm, based on my reading of Lemire, the > >> unbiased "algorithm 3" in https://arxiv.org/abs/1805.10941 is part > >> already of the C standard library in