August 2018
Intermediate to advanced
227 pages
4h 16m
Chinese
Content preview from 高效R语言编程
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高效优化
｜
155
图
7
-
5
：RStudio CRAN 镜像网站上提供 R 与其他语言接口的包的每天下载量
本章的后续部分解释了
C++
数据类型（见“
C++
数据类型”一节），演示了
如何直接编写
C++
代 码（ 见“ soureCPP() 函数”一节），解释了向量（见“向
量与循环”）以及
Rcpp
sugar
（见“
C++ sugar
”），最后提供了一些进一步
的资源（见“
Rcpp
资源”）。
一个简单的
C++
函数
为了编写以及编译
C++
代码，你需要一个好用的
C++
编译器（见“软件配置”
一节）。本章代码使用的是版本
0.12.7
的
Rcpp
。
Rcpp
文档丰富，在
CRAN
上包的页面中有大量的简介。
除了它的普及之外，
其他大量的包依赖于
Rcpp
，在“逆序输入”一节中可看到相关内容。
为了检验你已经安装本章所需内容，运行下面的本书所带包中的代码：
efficient::test_rcpp()
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.