[R] unknown compression

Uwe Ligges ligges at statistik.tu-dortmund.de
Tue Mar 16 18:00:59 CET 2010

On 16.03.2010 14:35, R Heberto Ghezzo, Dr wrote:
> Thanks to Uwe Ligges, simply putting
> library(xxx)
> dump(ls(pos=2)),file="xxx.r")
> gives a file with all the 'pure R' function in a package
> This just solved my problem, as an added curiosity or just for completion sake, if the package 'xxx'
> has some C/Fortran code , ie an /lib/xxx.dll in Windows, will Rcmd INSTALL xxx work when xxx has
> a R; man and lib subfolders? not a src subfolder since I have the dll not the original C/for

No, it won't work that way.
But you could use some trick in order to "inject" the library. Since 
that one was compiled and linked against an ancient version of R, there 
is always the risk that your library won't work at all or causes 
crashes, of course.

As an example see package rcom that does such nasty things by delivering 
the files somewhere in ./inst and ciopies on installation to ./libs 
using its configure.win file.

Uwe Ligges

> Thanks
> Heberto Ghezzo
> ________________________________________
> From: Uwe Ligges [ligges at statistik.tu-dortmund.de]
> Sent: Sunday, March 14, 2010 2:04 PM
> To: R Heberto Ghezzo, Dr
> Subject: Re: [R] unknown compression
> On 13.03.2010 22:33, R Heberto Ghezzo, Dr wrote:
>> Hello Uwe / Rohlf
>> Yes I know that, the problem here is that I have a package, old, it says Built: R 2.0.0; ; 2004-11-15 14:58:41; windows
>>    it is not in CRAN the author and manteiner can not be reached, so I have no way of obtaining the source tarball. The only solution is to decompress the pair .rdb .rdx if it is possible?
> In that case you can load the package and save all functions from that
> environment into a new package.
> The tool to load the serialized databases is lazyLoad() - or more low
> level lazyLoadDBfetch(), both not intended to be called by a user.
> Best wishes,
> Uwe
>> Thanks for any help
>> Heberto Ghezzo
>> ________________________________________
>> From: Uwe Ligges [ligges at statistik.tu-dortmund.de]
>> Sent: Saturday, March 13, 2010 3:37 PM
>> To: R Heberto Ghezzo, Dr
>> Cc: r-help at r-project.org
>> Subject: Re: [R] unknown compression
>> On 12.03.2010 21:34, R Heberto Ghezzo, Dr wrote:
>>> Hello, I am trying to modify some functions in an existing package. I can get a function by just typing the name in the console, but how can I get all the functions in a package? the ./R/ subdirectory has files xx.rdb and xx.rdx which I can not decompress with 7-zip or with unzip, unrar etc. The help files are compressed with gzip in the ./man/ folder and can be unzipped easily.
>> You are looking in a binary package.
>> Instead of that, just download a source package (i.e. a not yet compiled
>> one) from CRAN where you find the sources in plain text.
>> Uwe Ligges
>>> Thanks for your help
>>> heberto.ghezzo at McGill.ca
>>> ______________________________________________
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>>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.

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