刚学会用R，发现很多包要自己安装，还有些需要载入程辑包，不知道具体怎么操作？
直接输入命令：install.packages("tseries")
出现：trying URL 'http://cran.rstudio.com/bin/windows/contrib/3.1/tseries_0.10-32.zip'
Content type 'application/zip' length 320293 bytes (312 Kb)
opened URL
downloaded 312 Kb
package ‘tseries’ successfully unpacked and MD5 sums checked
The downloaded binary packages are in
C:\Users\DELL\AppData\Local\Temp\RtmpsPranY\downloaded_packages
好像没有安装成功，不知道具体该怎么操作？
