使用“R CMD INSTALL"时如何安装依赖项安装 R 包? [英] How to install dependencies when using "R CMD INSTALL" to install R packages?

问题描述

我正在开发我的第一个 R 包(使用 R 2.13、Ubuntu 10.10).我们称它为 foo 并假设 R/目录中的代码以行 library(bar) 开头，其中 bar 是现有的foo 依赖的 CRAN 中的包.我的说明文件包含以下行:

I'm developing my first R package (using R 2.13, Ubuntu 10.10). Let's call it foo and let's say that the code in the R/ directory begins with the line library(bar), where bar is an existing package, in CRAN, on which foo depends. My DESCRIPTION file contains the line:

Depends: bar

当包 foo 准备好进行测试时，我使用以下命令在本地安装它:

When package foo is ready for testing, I install it locally using:

R CMD INSTALL foo_1.0.tar.gz

但是，如果没有安装bar，我看到了:

However, if bar is not installed, I see:

ERROR: dependency ‘bar’ is not available for package ‘foo’

显然，如果我的 foo 是使用 install.packages() 从 CRAN 安装的，bar 将同时安装.所以我的问题是:当我使用 R CMD INSTALL 安装我的包 foo 时，如何确保安装了 CRAN 包 bar?这是配置脚本的工作吗?

Obviously, if my foo were installed from CRAN using install.packages(), bar would be installed at the same time. So my question is: how can I ensure that CRAN package bar is installed, if required, when I install my package foo using R CMD INSTALL? Is this a job for a configuration script?

推荐答案

其实重读R扩展指南，并没有说R CMD INSTALL会从CRAN获取依赖.R 中的 install.packages() 方法会这样做，但乍一看我不认为 R CMD INSTALL 会这样做.

Actually, re-reading the R extensions guide, it doesn't say that R CMD INSTALL will get dependencies from CRAN. The install.packages() method from within R will do that, but at first glance I don't think R CMD INSTALL does.

您可以使用 install.packages 从 .tar.gz 安装，但您必须设置 repos=NULL，然后这适用:

You can use install.packages to install from a .tar.gz, but you have to set repos=NULL, and then this applies:

 dependencies: logical indicating to also install uninstalled packages
          on which these packages depend/suggest/import (and so on
          recursively).  Not used if repos = NULL.

我怀疑要做的事情是从DESCRIPTION文件中取出依赖项，然后在干净的环境中测试构建时运行R并对其执行install.packages().

I suspect the thing to do is to get the dependencies out of the DESCRIPTION file and then run R and do an install.packages() on those when you are testing your build in a clean environment.

这篇关于使用“R CMD INSTALL"时如何安装依赖项安装 R 包?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！