[R] Extracting data from .zip file in WINDOWS version of package

Jain, Nitin Nitin.Jain at pfizer.com
Tue Dec 20 21:31:07 CET 2005

Dear Andy and Prof. Ripley,

Thank you very much for the suggestions. Tried the "ZipData" option, and it solved my problem. 
I think Andy's suggestion should also work, but haven't tried it yet.

I appreciate such a speedy response.

Best regards,

Nitin Jain, PhD
<nitin.jain at pfizer.com>
Non Clinical Statistics
Pfizer, Inc. (Groton, CT)
Bldg: 260, # 1451
Ph:  (860) 686-2526 (Office)
Fax: (860) 686-6170

-----Original Message-----
From: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk]
Sent: Tuesday, December 20, 2005 2:15 PM
To: Jain, Nitin
Cc: r-help at stat.math.ethz.ch; ligges at statistik.uni-dortmund.de
Subject: Re: [R] Extracting data from .zip file in WINDOWS version of

On Tue, 20 Dec 2005, Jain, Nitin wrote:

> I am building a R-package for Genetics analysis. The accepted data is in pedigree (.ped) file format.
> To load the data (say CAMP.ped) from "data" directory, I have a function "CAMP.R", which does the job.
> The package builds successfully in Linux (.tar.gz) and the data loads successfully by "data(CAMP)".
> However, when I build the package in WINDOWS, the data directory is zipped, and the command "data(CAMP)"
> gives an error -
> Error in readGenes(gfile = "CAMP.ped",....)
> Genotype file CAMP.ped does not exist.
> While debugging "data(CAMP)", I found that only the file "CAMP.R" is extracted temporarily, and not the file
> "CAMP.ped" - which causes the error.
> Linux version does not face this problem as the data directory is not zipped.

Well, not zipped by default: it can be zipped.

> Could you please suggest a way around for this problem?

You need to read the `Writing R Extensions' manual and set the appropriate 
option in the DESCRIPTION file.  Search for 'ZipData'

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595
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