I am trying to install packages, WHat i did is: 
 
options(CRAN= "http://cran.us.r-project.org/")
install.packages("pakgs")
 
However I got error message like:
trying URL `http://cran.us.r-project.org//bin/windows/contrib/PACKAGES'
Error in download.file(url = paste(contriburl, "PACKAGES", sep = "/"),  : 
        cannot open: HTTP status was `404'
In addition: Warning message: 
argument `lib' is missing: using C:/PROGRA~1/R/rw1051/library in: install.packages("modreg")
 
Can you tell me why?

 
 
 

		
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