'；汽车&x27；依赖项错误：在R 3.1.2中安装插入符号

无法安装插入符号包

install.packages("caret")
Installing package into ‘/home/timekeeper/R/x86_64-unknown-linux-gnu-library/3.1’
(as ‘lib’ is unspecified)
Warning: dependency ‘car’ is not available
trying URL 'http://mirrors.softliste.de/cran/src/contrib/caret_6.0-52.tar.gz'
Content type 'application/x-gzip' length 3665293 bytes (3.5 Mb)
opened URL
==================================================
downloaded 3.5 Mb

ERROR: dependency ‘car’ is not available for package ‘caret’
* removing ‘/home/timekeeper/R/x86_64-unknown-linux-gnu-library/3.1/caret’

The downloaded source packages are in
    ‘/tmp/RtmpLbNFrr/downloaded_packages’
Warning message:
In install.packages("caret") :
  installation of package ‘caret’ had non-zero exit status

当我单独安装“car”软件包时，它会显示：

install.packages("car")
Installing package into ‘/home/timekeeper/R/x86_64-unknown-linux-gnu-library/3.1’
(as ‘lib’ is unspecified)
Warning message:
package ‘car’ is not available (for R version 3.1.2) 

我正在使用

R version 3.1.2 (2014-10-31) -- "Pumpkin Helmet"
Copyright (C) 2014 The R Foundation for Statistical Computing
Platform: x86_64-unknown-linux-gnu (64-bit)

我从3.2降级到R3.1.2，因为我遇到了一些兼容性问题。

---

有没有办法在不升级到R3.2的情况下使用插入符号，因为“car”包适用于>=R3.2

安装一个归档文件：但是你真的应该升级RJust-want+1@Pascal的评论。升级R解决了car和caret软件包的问题。由于我也需要R 3.1，我已经成功安装了R 3.1和R 3.2，car和caret现在都可以正常工作。@Aayuskumarsingha您是如何解决这个问题的？我还需要在R3.2.0上工作，我不能安装插入符号，因为它需要汽车！