PerformanceAnalytics 包里面有VaR

> install.packages("PerformanceAnalytics")
Warning in install.packages :
  unable to access index for repository https://cran.rstudio.com/src/contrib:
  cannot open destfile 'C:\Users\ADMINI~1\AppData\Local\Temp\RtmpkLeEmK\file19203d984cbf', reason 'No such file or directory'
Warning in install.packages :
  unable to access index for repository http://www.stats.ox.ac.uk/pub/RWin/src/contrib:
  cannot open destfile 'C:\Users\ADMINI~1\AppData\Local\Temp\RtmpkLeEmK\file1920224376c5', reason 'No such file or directory'
Error in install.packages : cannot open the connection

提示这个事装上了还是没装上呀？
library(PerformanceAnalytics)
提示我没有这个包呢

把R关了重新弄下好了3Q