[R] download truncating large files

[Ian Shannon]

Jim,

Thanks.

However that doesn't solve my problem.  I should have said my problem is finding the source of the error:- is it me?; or is it the local system here?; or is it a problem with R's internal download command.

I know that the package is being truncated because I did download it outside of R and compared the 2 files.  They were identical (byte for byte) up to the point of truncation.

If there is an R error then I am keen to report it as such. [[Note that first off I thought it was an error with the CRAN packages and reported it there only to be embarrassed when I subsequently proved that the package was good.]]  However if there is proxy server or firewall problems then I want to report it to the local service desk.  Just doing a work-around is not satisfactory in that some poor hapless person is also going to come a'cropper with this in the future.

Any pointers as how to proceed?  I am currently stumped because "download" is an internal command and I can't dive into it to trace the source the error.

Ian

Ian Shannon
Landscape Modelling and Decision Support Section
Office of Environment & Heritage
PO Box A290 Sydney South
NSW       1232
Phone: (02) 99 955 490
Mob:       0424 724 352
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-----Original Message-----
From: jim holtman 
Sent: Monday, September 17, 2012 10:36 PM
To: Shannon Ian
Cc: r-help at r-project.org
Subject: Re: [R] download truncating large files

Try downloading the zip file using the browser interface to see if it might be something with your proxy.  Do this outside of R to see if you have the same problem.  After that, you can just install from a local zip file.

On Mon, Sep 17, 2012 at 5:21 AM, Ian Shannon wrote:
> Hi there,
>
> I have had a problem with loading the package XLConnectJars_0.2-0.zip 
> from the CRAN mirrors. The problem occurs when executing
> utils:::menuInstallPkgs()
> I have traced the problem down to the "download" internal command.  It appears that files over approx 15 MB are being truncated.  The exact point of truncation varies slightly but the truncation is on a 4096-byte boundary.
>
> I am running =>
>
>
> R version 2.15.1 (2012-06-22) -- "Roasted Marshmallows"
> Copyright (C) 2012 The R Foundation for Statistical Computing ISBN 
> 3-900051-07-0
> Platform: i386-pc-mingw32/i386 (32-bit)
>
....

--
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.
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