CODEWITHSUNDEEP
r
user81411
user81411

Reputation: 457

Updating R in Windows

Following this post and also this link , I tried to update my R version .

 sessionInfo()
 R version 2.14.0 (2011-10-31)
 Platform: i386-pc-mingw32/i386 (32-bit)

 locale:
 [1] LC_COLLATE=English_United States.1252 
 [2] LC_CTYPE=English_United States.1252   
 [3] LC_MONETARY=English_United States.1252
 [4] LC_NUMERIC=C                          
 [5] LC_TIME=English_United States.1252    

 attached base packages:
 [1] stats     graphics  grDevices utils     datasets  methods   base     

 other attached packages:
 [1] installr_0.9

 loaded via a namespace (and not attached):
 [1] tools_2.14.0

But when I ran the code 

  updateR()
  Error in file(con, "r") : cannot open the connection

It shows exactly the same error while running the following command :

 check.for.updates.R() # tells you if there is a new version of R or not.
 Error in file(con, "r") : cannot open the connection

 install.R() # download and run the latest R installer
 Error in file(con, "r") : cannot open the connection

How can I update my R version ?

Upvotes: 13

Views: 6385

Answers (2)

Ryan McGibony
Ryan McGibony

Reputation: 461

Per https://github.com/talgalili/installr/#troubleshooting,

Try running:

setInternet2(TRUE)

That worked for me when I was getting the below error message:

Error in file(con, "r") : cannot open the connection

Upvotes: 36

mathematical.coffee
mathematical.coffee

Reputation: 56935

The URLs of the installr package are probably out of date. Just go the R website and download the latest version.

You will have to reinstall your packages manually though, which can be a pain. You can use rownames(installed.packages()) in your old R to get a list of the packages you currently have installed so that when you go to your new R you can just work down the list and install them all again.

You could even do

sprintf('install.packages(%s)', paste(shQuote(rownames(installed.packages())),collapse=','))

and then copy-paste that command into your new R to try reinstall everything you had installed on your old R. I personally prefer though to just install them as I need them, so that if I had packages I no longer use in the old R, I don't bother to reinstall them on the new R unless I need them.

Also, the above may fail simply because your current R is quite old compared to the new R so some packages may no longer be compatible.

Upvotes: 3

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