Timing can be an issue. You need to set the environment variables before accessing the internet for the 1st time in each R session. If you get the error, then try setting the variables, it will not work.
For my situation I have http_proxy and http_proxy_user set for the entire computer (in windows you do this through the control panel). If you want to go with the .Renviron route, just type: Sys.getenv('home') At the command prompt and it will tell you what your "Home" folder is. Just create the .Renviron file in that folder. -- Gregory (Greg) L. Snow Ph.D. Statistical Data Center Intermountain Healthcare greg.s...@imail.org 801.408.8111 > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r- > project.org] On Behalf Of Van Wyk, Jaap > Sent: Monday, February 08, 2010 10:11 PM > To: r-help@r-project.org > Subject: Re: [R] Installation require proxy settings (continued) > Importance: High > > Thanks to Greg and Michael for their advice. > I have tried all these possibilities (and other); nothing seems to > work; I persistently get the message: > In open.connection(con, "r") : > cannot open: HTTP status was '407 Proxy Authentication Required' > It seems as if "proxy authentication required" is causing the problem. > It seems I have to set up an .Renviron file, but I am still learning R, > and cannot find such a file. > Would it help, and how do I create it (it that is a possible > alternative to try). > Thanks for any comments. > Jacob > > > Jacob L van Wyk > Department of Statistics > University of Johannesburg (APK) > PO Box 524, Auckland Park, 2006 > Office ph: 011 559 3080 > Fax: 011 559 2499 > > > ________________________________ > This email and all contents are subject to the following disclaimer: > > http://www.uj.ac.za/UJ_email_legal_disclaimer.htm > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting- > guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.