RとC++:オブジェクトの変換・対応

• こちらからの続き
• RのオブジェクトとC++のそれの対応
  • R->C++がたくさんある
  • C++->Rは(２行目の)wrap()。(これのみ？)

a	b	c
Rcpp::as()	used to map SEXP to a C++ object (or proxy)
Rcpp::wrap()	used to map C++ object to a SEXP
Rcpp::List	proxy class for an R list (named entries, arb type)
Rcpp::NumericVector	proxy class for R double vector
Rcpp::IntegerVector	proxy class for R integer vector
Rcpp::ComplexVector	proxy class for R complex vector
Rcpp::NumericMatrix	proxy class for R double matrix
Rcpp::IntegerMatrix	proxy class for R integer matrix
Rcpp::ComplexMatrix	proxy class for R complex matrix
Rcpp::CharacterVector	proxy class for R character vector
Rcpp::Function	proxy class for an R function
Rcpp::Environment	proxy class for an R environment
Rcpp::XPtr	proxy class for an R external pointer
Rcpp::clone()	makes a copy of a proxy object
RcppDate	classic date class
RcppDatetime	classic datetime class
BEGIN_RCPP	macro marking the start of a C++ zone
END_RCPP	macro marking the end of a C++ zone

• • こちらを参考(ただしcxxPack パッケージはCRANから外れたらしい)