r - 为什么我无法安装 XML 包

Question

我在这里犯了一些基本错误吗？

install.packages("XML")
Warning in install.packages :
  package ‘XML’ is not available (for R version 2.13.0)
Installing package(s) into ‘C:/Program Files/R/R-2.13.0/library’
(as ‘lib’ is unspecified)
Warning in install.packages :
  package ‘XML’ is not available (for R version 2.13.0)

Answer 1

可能是因为www.omegahat.org不存在了。所以，

命令 install.packages("XML", repos = "http://www.omegahat.org/R")不起作用。而是在下面使用:

install.packages("XML", repos = "http://www.omegahat.net/R")