R 2.XX.Y 中的核心包

Question

我想知道如何知道R 2.XX.Y 中哪些包是核心。假设我安装。 R 2.14.1 那么这个版本会附带哪些软件包。谢谢

Answer 1

1) 您可以查看源代码。

2) 问题甚至不清楚，因为有 included 以及 recommended 库。大多数人会将您的问题理解为要求两组。

3) 在 Debian 上，我们拆分了安装目录，这样可以很容易地回答问题 2)：

edd@max:~$ ls /usr/lib/R/library/         ## 
base       datasets    lattice  nnet      stats4
boot       foreign     MASS     parallel  survival
class      graphics    Matrix   rpart     tcltk
cluster    grDevices   methods  spatial   tools
codetools  grid        mgcv     splines   utils
compiler   KernSmooth  nlme     stats

4) 查看源代码可以区分真实默认值和推荐值：（这些是来自版本化 tarball 的软链接）

edd@max:~$ COLUMNS=60 ls ~/src/debian/R/R-2.14.1/src/library/
base      grDevices     methods      splines  tools
compiler  grid          parallel     stats    utils
datasets  Makefile.in   profile      stats4
graphics  Makefile.win  Recommended  tcltk

和

edd@max:~$ COLUMNS=60 ls ~/src/debian/R/R-2.14.1/src/library/Recommended/
boot_1.3-3.tar.gz         MASS_7.3-16.tar.gz
boot.tgz                  MASS.tgz
class_7.3-3.tar.gz        Matrix_1.0-2.tar.gz
class.tgz                 Matrix.tgz
cluster_1.14.1.tar.gz     mgcv_1.7-12.tar.gz
cluster.tgz               mgcv.tgz
codetools_0.2-8.tar.gz    nlme_3.1-102.tar.gz
codetools.tgz             nlme.tgz
foreign_0.8-48.tar.gz     nnet_7.3-1.tar.gz
foreign.tgz               nnet.tgz
KernSmooth_2.23-7.tar.gz  rpart_3.1-50.tar.gz
KernSmooth.tgz            rpart.tgz
lattice_0.20-0.tar.gz     spatial_7.3-3.tar.gz
lattice.tgz               spatial.tgz
Makefile.in               survival_2.36-10.tar.gz
Makefile.win              survival.tgz
edd@max:~$ COLUMNS=60 

5) 最后，包的说明字段中也有这样的说明：

edd@max:~$ grep -i Recommended /usr/lib/R/library/*/DESCRIPTION
/usr/lib/R/library/boot/DESCRIPTION:Priority: recommended
/usr/lib/R/library/class/DESCRIPTION:Priority: recommended
/usr/lib/R/library/cluster/DESCRIPTION:Priority: recommended
/usr/lib/R/library/codetools/DESCRIPTION:Priority: recommended
/usr/lib/R/library/foreign/DESCRIPTION:Priority: recommended
/usr/lib/R/library/KernSmooth/DESCRIPTION:Priority: recommended
/usr/lib/R/library/lattice/DESCRIPTION:Priority: recommended
/usr/lib/R/library/MASS/DESCRIPTION:Priority: recommended
/usr/lib/R/library/Matrix/DESCRIPTION:Priority: recommended
/usr/lib/R/library/mgcv/DESCRIPTION:Priority: recommended
/usr/lib/R/library/nlme/DESCRIPTION:Priority: recommended
/usr/lib/R/library/nnet/DESCRIPTION:Priority: recommended
/usr/lib/R/library/rpart/DESCRIPTION:Priority: recommended
/usr/lib/R/library/spatial/DESCRIPTION:Priority: recommended
/usr/lib/R/library/survival/DESCRIPTION:Priority: recommended
edd@max:~$ 

和

edd@max:~$ grep "Priority: base" /usr/lib/R/library/*/DESCRIPTION
/usr/lib/R/library/base/DESCRIPTION:Priority: base
/usr/lib/R/library/compiler/DESCRIPTION:Priority: base
/usr/lib/R/library/datasets/DESCRIPTION:Priority: base
/usr/lib/R/library/graphics/DESCRIPTION:Priority: base
/usr/lib/R/library/grDevices/DESCRIPTION:Priority: base
/usr/lib/R/library/grid/DESCRIPTION:Priority: base
/usr/lib/R/library/methods/DESCRIPTION:Priority: base
/usr/lib/R/library/parallel/DESCRIPTION:Priority: base
/usr/lib/R/library/splines/DESCRIPTION:Priority: base
/usr/lib/R/library/stats4/DESCRIPTION:Priority: base
/usr/lib/R/library/stats/DESCRIPTION:Priority: base
/usr/lib/R/library/tcltk/DESCRIPTION:Priority: base
/usr/lib/R/library/tools/DESCRIPTION:Priority: base
/usr/lib/R/library/utils/DESCRIPTION:Priority: base
edd@max:~$ 

所有这些答案都是针对 2.14.1 的。

Answer 2

或者你也可以使用：

installed.packages(priority = "base")

或查看常见问题解答：

http://cran.r-project.org/doc/FAQ/R-FAQ.html#Which-add_002don-packages-exist-for-R_003f