Proxy setting for R

user_813966 0
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I am facing problem while conecting R with internet in my office. May be this due to LAN settings. I tried the almost all possible ways I come across in the web (see below) but still in vain.

  • Method1: Invoking R using --internet2

  • Method2: Invoking R by setting ~/Rgui.exe http_proxy=http:/999.99.99.99:8080/ http_proxy_user=ask

  • Method3: Setting Setinternet2=TRUE

  • Method4:

    curl <- getCurlHandle()
curlSetOpt(.opts = list(proxy = '999.99.99.99:8080'), curl = curl)
Res <- getURL('http://www.cricinfo.com', curl = curl)

In above all methods I can able to load packages directly from CRAN also able to download files using download.file command

But using getURL(RCurl), readHTMLTable(XML), htmlTreeParse(XML) commands I am unable to extract web data. I am getting ~<HEAD>\n<TITLE>Access Denied</TITLE>\n</HEAD>~ error.

How to set LAN proxy settings for XML package in R?

r
12 Answers

Inspired by all the responses related on the internet, finally I've found the solution to correctly configure the Proxy for R and Rstudio.

There are several steps to follow, perhaps some of the steps are useless, but the combination works!

  1. Add environment variables http_proxy and https_proxy with proxy details.

    variable name: http_proxy
variable value: https://user_id:password@your_proxy:your_port/

variable name: https_proxy
variable value: https:// user_id:password@your_proxy:your_port

  2. If you start R from a desktop icon, you can add the --internet flag to the target line (right click -> Properties)

    e.g."C:\Program Files\R\R-2.8.1\bin\Rgui.exe" --internet2

  3. For RStudio just you have to do this:

    Firstly, open RStudio like always, select from the top menu:

    Tools-Global Options-Packages

    Uncheck the option: Use Internet Explorer library/proxy for HTTP

  4. Find the file (.Renviron) in your computer, most probably you would find it here: C:\Users\your user name\Documents.

    Note that: if it does not exist you can create it just by writing this command in R:

    file.edit('~/.Renviron')

    Then add these six lines to the initials of the file:

    options(internet.info = 0)

http_proxy = https:// user_id:password@your_proxy:your_port

http_proxy_user = user_id:password

https_proxy = https:// user_id:password0@your_proxy:your_port

https_proxy_user = user_id:password

ftp_proxy = user_id:password@your_proxy:your_port

  5. Restart R. Type the following commands in R to assure that the configuration above works well:

    Sys.getenv("http_proxy")

Sys.getenv("http_proxy_user")

Sys.getenv("https_proxy")

Sys.getenv("https_proxy_user")

Sys.getenv("ftp_proxy")

  6. Now you can install the packages as you want by using the command like:

    install.packages("mlr",method="libcurl")

    It's important to add method="libcurl", otherwise it won't work.

user_50898330
  1. Find your R home with R.home("home")
  2. Add following lines to Renviron.site in your R home
http_proxy=http://proxy.dom.com/
http_proxy_user=user:passwd

https_proxy=https://proxy.dom.com/
https_proxy_user=user:passwd
  1. Open R -> R reads Renviron.site in its home -> it should work :)
user_41128920

My solution on a Windows 7 (32bit). R version 3.0.2

Sys.setenv(http_proxy="http://proxy.*_add_your_proxy_here_*:8080")

setInternt2

updateR(2)
user_36484740
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