[R] Problem accessing xslx on CRAN mirrir

Duncan Murdoch murdoch.duncan at gmail.com
Tue Jul 14 16:50:53 CEST 2015


On 14/07/2015 6:09 AM, Knox, Tom wrote:
> I am very new to the use of R and trying to install it in order to use a package called mh1823 for determining Probability of Detection stats for Non-Destructive Evaluation.  I have hit an immediate problem installing the xlsx package and get the following messages:
> 
> Warning: unable to access index for repository http://star-www.st-andrews.ac.uk/cran/src/contrib
> Warning: unable to access index for repository http://www.stats.ox.ac.uk/pub/RWin/src/contrib
> Error in install.packages(NULL, .libPaths()[1L], dependencies = NA, type = type) :
>   no packages were specified
> In addition: Warning message:
> In open.connection(con, "r") : cannot open: HTTP status was '0 (nil)'
> 
> I do not seem to be able to get past this issue, though am able to load the mh1823 POD package successfully from local zip file

It looks as though R couldn't make any connection.  Perhaps you are
using a proxy?  It looks as though you are on Windows; if so, you could
try running

setInternet2(TRUE)

before the install; that will use the proxy settings for Internet Explorer.

Duncan Murdoch

> 
> Regards,
> 
> Tom
> Tom Knox
> NDE Subject Matter Expert
> Upstream Engineering Centre
> BP
> Sunbury-on-Thames
> Mobile: +44 (0)7796 182926
> Fax:     +44 (0)1932 763439
> E-mail: tom.knox at bp.com
> Postal Address:  Building H, BP Exploration, Chertsey Road, Sunbury-on-Thames, UK, TW16 7LN
> 
> 
> 
> 
> 
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