我試圖下載動物園包用時間序列的工作:無法安裝動物園包(R)
install.packages("zoo")
,但我得到了以下信息:
--- Please select a CRAN mirror for use in this session ---
Warning: unable to access index for repository http://cran.cnr.Berkeley.edu/bin/windows/contrib/2.12
Warning: unable to access index for repository http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/2.12
Warning messages:
1: In open.connection(con, "r") :
unable to connect to 'cran.r-project.org' on port 80.
2: In getDependencies(pkgs, dependencies, available, lib) :
package ‘zoo’ is not available
我試了不同的鏡子和我不斷得到相同的錯誤......動物園只是在大多數鏡子不可用或出現問題嗎?
你是否支持代理?當你嘗試安裝其他軟件包時會發生這種情況嗎? – 2011-05-18 18:33:04