其他
你只有一个系统，却要在多个平台上测试你的R包
做为开发者，你必须是R CMD check经常跑的，但你只有一个平台，这就不好搞了，当然你可以用Travis (Linux, macOS) 或 Appveyor (Windows)，但是有更好的方法，你根本就不用离开你的R，不管你是那个系统下，你都可以将R CMD check跑在各种其它的系统上，然后就像在你自己的机器上跑一样，实时看到输出，检查是否那里有问题。
chk <- check_for_cran()# wait a bitchk$cran_summary()#> Updating status...#> ## Test environments#> - R-hub fedora-clang-devel (r-devel)#> - R-hub windows-x86_64-devel (r-devel)#> - R-hub ubuntu-gcc-release (r-release)#> #> ## R CMD check results#> ❯ On fedora-clang-devel (r-devel), windows-x86_64-devel (r-devel), ubuntu-gcc-release (r-release)#> checking CRAN incoming feasibility ... NOTE#> Maintainer: ‘Maëlle Salmon <maelle.salmon@yahoo.se>’#> #> New submission#> #> The Description field contains#> <http://http://cran.r-project.org/doc/manuals/r-release/R-exts.html#The-DESCRIPTION-file>#> Please enclose URLs in angle brackets (<...>).#> #> The Date field is over a month old.#> #> ❯ On fedora-clang-devel (r-devel), windows-x86_64-devel (r-devel), ubuntu-gcc-release (r-release)#> checking R code for possible problems ... NOTE#> .bello: no visible global function definition for ‘tail’#> Undefined global functions or variables:#> tail#> Consider adding#> importFrom("utils", "tail")#> to your NAMESPACE file.#> #> 0 errors ✔ | 0 warnings ✔ | 2 notes ✖支持各种平台，已经发行版和开发版的R
| name | description | cran-name |
|---|---|---|
| debian-gcc-devel | Debian Linux, R-devel, GCC | r-devel-linux-x86_64-debian-gcc |
| debian-gcc-patched | Debian Linux, R-patched, GCC | r-patched-linux-x86_64 |
| debian-gcc-release | Debian Linux, R-release, GCC | r-release-linux-x86_64 |
| fedora-clang-devel | Fedora Linux, R-devel, clang, gfortran | r-devel-linux-x86_64-fedora-clang |
| fedora-gcc-devel | Fedora Linux, R-devel, GCC | r-devel-linux-x86_64-fedora-gcc |
| linux-x86_64-centos6-epel | CentOS 6, stock R from EPEL | r-release |
| linux-x86_64-centos6-epel-rdt | CentOS 6 with Redhat Developer Toolset, R from EPEL | r-release |
| linux-x86_64-rocker-gcc-san | Debian Linux, R-devel, GCC ASAN/UBSAN | r-devel |
| macos-elcapitan-release | macOS 10.11 El Capitan, R-release (experimental) | r-release-osx-x86_64 |
| macos-mavericks-oldrel | macOS 10.9 Mavericks, R-oldrel (experimental) | r-oldrel-osx-x86_64 |
| solaris-x86-patched | Oracle Solaris 10, x86, 32 bit, R-patched (experimental) | r-patched-solaris-x86 |
| ubuntu-gcc-devel | Ubuntu Linux 16.04 LTS, R-devel, GCC | r-devel |
| ubuntu-gcc-release | Ubuntu Linux 16.04 LTS, R-release, GCC | r-release |
| ubuntu-rchk | Ubuntu Linux 16.04 LTS, R-devel with rchk | r-devel |
| windows-x86_64-devel | Windows Server 2008 R2 SP1, R-devel, 32/64 bit | r-devel |
| windows-x86_64-devel-rtools4 | Windows Server 2012, R-devel, Rtools4.0, 32/64 bit (experimental) | r-devel |
| windows-x86_64-oldrel | Windows Server 2008 R2 SP1, R-oldrel, 32/64 bit | r-oldrel-windows-ix86+x86_64 |
| windows-x86_64-patched | Windows Server 2008 R2 SP1, R-patched, 32/64 bit | r-patched |
| windows-x86_64-release | Windows Server 2008 R2 SP1, R-release, 32/64 bit | r-release-windows-ix86+x86_64 |
免费，而且是开源的
rhub：https://github.com/r-hub/ 就是github上，它是开源的，而且服务是免费的。
其实还能有别的用处
早在三年前，《无中生有windows版R包》中，我已经演示了另一种rhub的用法，那就是使用这些平台来打R包，当年我只有Mac和Linux系统，然后我用rhub来生成Windows版本的R包，方便其他用户下载安装。
往期精彩
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