RInside 和 Rcpp 的区别 [英] Difference between RInside and Rcpp

问题描述

我了解 RInside 允许 C++ 程序嵌入 R 代码，而 Rcpp 允许 R 代码调用 C++ 函数或库.

I understand RInside allows C++ program to embed R code, while Rcpp enables R code to call C++ functions or library.

RInside 和 Rcpp 之间是否存在其他差异和共性?为什么 RInside 有一个名为 Rcpp 的命名空间?开发者是否总是需要 RInside 和 Rcpp 来调用 R 代码作为 Cpp 中的一个类?

Are there other differences and commonalities between RInside and Rcpp? Why RInside has a namespace called Rcpp? Do developers always need both RInside and Rcpp to call R code as a class in Cpp?

推荐答案

Rcpp:

Rcpp 包提供了 R 函数和一个 C++ 库，以促进 R 和 C++ 的集成.

The Rcpp package provides R functions and a C++ library facilitating the integration of R and C++.

RInside:

RInside 包提供了一些类，用于通过依赖 Rcpp 将 R 无缝嵌入到 C++ 应用程序中.

The RInside package provides a few classes for seamless embedding of R inside of C++ applications by relying on Rcpp.

所以看起来 Rcpp 是较低级别的，并且促进了两种语言之间的通信，不仅仅是从 R 到 C++，如您所说，而是双向通信.另一方面，RInside 是建立在 Rcpp 之上的更高级别的库，专注于将 R 轻松嵌入到 C++ 中.

So it appears the Rcpp is lower level and facilities the communication between the two languages, not just from R to C++ as you state but communication in both directions. RInside, on the other hand, is higher level library built on top of Rcpp focused on easy embedding of R into C++.

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