回复 第3楼 的 谢益辉:基本上是从上个月开始装ubuntu,处于摸索状态。因为想装一套[code]\tex[/code]+emacs+ess+R及wordpress程序,所以选择linux环境。
我在sources.list里添加了
deb http://cran.r-project.org/bin/linux/ubuntu/ natty-backports main restricted universe
然后 sudo apt-get update 出现:
W: 无法下载 http://cran.r-project.org/bin/linux/ubuntu/dists/natty-backports/main/binary-i386/Packages 404 Not Found
W: 无法下载 http://cran.r-project.org/bin/linux/ubuntu/dists/natty-backports/restricted/binary-i386/Packages 404 Not Found
W: 无法下载 http://cran.r-project.org/bin/linux/ubuntu/dists/natty-backports/universe/binary-i386/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
肿么办?