Thanks Jim and Prof Ripley i believe, the problem with my internet connection, Coz i tried all the method found in internet to solve the problem, like proxy setting, set internet true, etc......intially problem was unable to connect, then after setting proxy it became 407 authentication problem, now 501 error has come....tried but not solved yet.....
I will talk with my network administrator in the next monday, let see what happens... Best regards Mahmud ________________________________________ From: Jim Lemon [j...@bitwrit.com.au] Sent: Saturday, 9 July 2011 6:23 PM To: Md Mahmudul Haque Subject: Re: [R] problem to set CRAN mirror On 07/08/2011 07:22 PM, Md Mahmudul Haque wrote: > Dear Sir, > > When i am trying to set CRAN mirror to install packages, its showing the > following messages, i can't install the packages > >>>> chooseCRANmirror() > Warning message: > In open.connection(con, "r") : > unable to connect to 'cran.r-project.org' on port 80. > Hi Mahmud, As Prof Ripley wrote, it is probably your internet connection. If port 80 isn't working, you won't be able to download from anything. See if you can get Google - if you can't it's likely that you'll have to sort out the internet connection. Jim ______________________________________________ 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.
