[R] load file RData which store in zip file

[Roger Bivand]

On Wed, 29 Mar 2006, Muhammad Subianto wrote:

> Dear R users,
> My situation:
> (1) I have limited workspace for my work harddisk (about 10 GiB).
> (2) I have a lot of data files in R workspace (*.RData) which most of
> them > 200 MiB. For some reason I zip some of them, for instance
> "filename.RData (250 MiB)" to "filename.zip (3MiB)". In this work I
> have a lot of more space of my harddisk.
> 
> Normally, If I want to use "filename.RData" for my experiment, I can
> do it with load("filename.RData").

Please try to use the compress=TRUE argument to save(). If you save()ed 
uncompressed, you have to load uncompressed, unzip first. There are 
unzipping functions in R too, see ?zip.file.extract.

> 
> Then I tried to open/load
> 
> > load("filename.zip")
> Error: bad restore file magic number (file may be corrupted) -- no data loaded
> >
> 
> My question:
> How can I open/load "filename.zip"? Is there any function to open R
> workspace which it store in zip file? I hope some one can give me
> advices.
> 
> 
> Best, Muhammad Subianto
> 
> > version
>          _
> platform i386-pc-mingw32
> arch     i386
> os       mingw32
> system   i386, mingw32
> status
> major    2
> minor    2.1
> year     2005
> month    12
> day      20
> svn rev  36812
> language R
> >
> 
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-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no