R是用于数据分析的语言，通过Rcpp可以将cpp库引入R中使用，适用于提高性能和接入原有算法库的场合。 Rcpp包提供C++类方便C or C++代码与R软件包进行交互，使用R中提供的.Call() 调用界面。 Rcpp提供R中的基础数据类型的C++类供访问。包作者可以保持R的数据结构而无需与C++进行不断的转换。同时，这些数据结构提供C++级别的存取。数据类型可以双向映射。可以从 R中把数据赋给C++, 返回数据从C++到R也完全一样。

Rcpp：无缝的R和C ++集成

Rcpp is an R add-on package which facilitates extending R with C++ functions. It is being used for anything from small and quickly constructed add-on functions written either to fluidly experiment with something new or to accelerate computing by replacing an R function with its C++ equivalent to large-scale bindings for existing libraries, or as a building block in entirely new research computing environments. While still relatively new as a project, Rcpp has already become widely deployed among users and developers in the R community. Rcpp is now the most popular language extension for the R system and used by over 100 CRAN packages as well as ten BioConductor packages. This books aims to provide a solid introduction to Rcpp

随时：POSIXct或日期转换器的任何东西

Illustrates a range of statistical computations in R using the Rcpp package Provides a general introduction to extending R with C++ code Features an appendix for R users new to the C++ programming language Rcpp packages are presented in the context of useful application case studies