Question about proxy setting of R

Dear Jim,

Thanks to your advice, "Proxy Authentification" window showed up, however,
I couldn't access to the internet. Error messages are as below.

------------------------------ ------------------------------ -------

update.packages(ask='graphics',checkBuilt=TRUE)

--- Please select a CRAN mirror for use in this session ---
Warning: failed to download mirrors file (scheme not supported in URL
'https://cran.r-project.org/CRAN_mirrors.csv'); using local file
'C:/PROGRA~1/R/R-33~1.2/doc/CRAN_mirrors.csv'
Warning: unable to access index for repository
https://cran.ism.ac.jp/src/contrib:
  scheme not supported in URL 'https://cran.ism.ac.jp/src/contrib/PACKAGES'

Proxy authentication failed:
        please re-enter the credentials or hit Cancel
------------------------------ ------------------------------ -------

I assume the proxy server is only available for "http", not "https".
What should I do ?

J J


----- Original Message -----
*From:* jim holtman <jholtman at gmail.com>
*To:* qwertyui_period at yahoo.co.jp
*Date:* 2016/12/2, Fri 09:13
*Subject:* Re: [R] Question about proxy setting of R

Try this option:

 options(download.file.method = "internal")





Jim Holtman
Data Munger Guru

What is the problem that you are trying to solve?
Tell me what you want to do, not how you want to do it.

On Wed, Nov 30, 2016 at 10:37 PM, <qwertyui_period at yahoo.co.jp> wrote:

Hello,

I use R 3.0.2 on Win 7 through proxy server using ".Rprofile" in home
directory that includes "Sys.setenv(http_proxy=proxy_ server:port)".
There has been no problem to access the internet for some years.
In this situation, I installed R 3.3.1 and then entered "update.packages
()", however, "Proxy Authentification" window didn't show up and
failed to access the internet. Error messages are as below.

------------------------------ ------------------------------ -------

update.packages(ask='graphics' ,checkBuilt=TRUE)

--- Please select a CRAN mirror for use in this session ---
Warning: failed to download mirrors file (cannot open URL
'https://cran.r-project.org/CRAN_mirrors.csv'); using local file
'C:/PROGRA~1/R/R-33~1.2/doc/ CRAN_mirrors.csv'
Warning: unable to access index for repository
https://cran.ism.ac.jp/src/contrib:
  cannot open URL 'https://cran.ism.ac.jp/src/contrib/PACKAGES'
Warning: unable to access index for repository
http://www.stats.ox.ac.uk/pub/RWin/src/contrib:
  cannot open URL 'http://www.stats.ox.ac.uk/pub/RWin/src/contrib/PACKAGES
'
Warning message:
In download.file(url, destfile = f, quiet = TRUE) :
  cannot open URL 'https://cran.r-project.org/CRAN_mirrors.csv': HTTP
status was '407 Proxy Authentication Required'

------------------------------ ------------------------------ -------

Strange to say, R 3.0.2 is able to access to the internet, and R 3.3.1
shows collect proxy setting in ".Rprofile"  by "Sys.getenv("http_proxy")"
From internet information, I added "http_proxy_user=ask" to ".Rprofile", or
" --internet2" to the desktop icon of R 3.3.1, ending up in the same
result.

Please show me the way of proxy setting of R 3.3.1.