Re: [R] Problem opening connections to removable hard drive

2007-04-26 Thread Uwe Ligges
I tried with R-2.4.1 and R-2.5.0 - it works for me.
Can you please try again with R-2.5.0?

Uwe Ligges

Elizabeth Purdom wrote:
 Hi,
 
 I have my files and R session on a portable hard drive to be able to 
 work across computers since I have some extremely large files. I have 
 just started doing this and generally it works as I expect. But after a 
 while of using my R session, certain types of calls to open connections 
 on the hard drive don't work. But I experience no problems 
 opening/saving files on the portable hard drive using other programs.
 
 In particular, if I explicitly call the entire folder path to the hard 
 drive, I can save an object to file, for example. But if I just want to 
 save it in the current working directory, without explicitly naming the 
 entire path, then I have problems (I show an example below). I am using 
 a package that assumes a certain file structure from the current working 
 directory in order to find/write output, which is why I want to be able 
 to rely on not explicitly calling the whole path. Furthermore, I was 
 experimenting just now, and when I changed the current directory to 
 another one, and then back to the removable hard drive, everything gets 
 'reset' somehow and opening connections works again, just like when I 
 first started up my session.
 
 I am on Windows XP, R 2.4.0.
 
 Thanks,
 Elizabeth Purdom
 
 example:
   getwd()
 [1] I:/ICBP/Exon Array/Data
 #explicit call to hard drive works...
   save(x,file=I:/ICBP/Exon Array/Data/tmp.rdata)
 #unexplicit call relying on knowing working directory doesn't...
   save(x,file=tmp.rdata)
 Error in gzfile(file, wb) : unable to open connection
 In addition: Warning message:
 cannot open compressed file 'tmp.rdata'
 
 __
 R-help@stat.math.ethz.ch mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.

__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


[R] Problem opening connections to removable hard drive

2007-04-24 Thread Elizabeth Purdom
Hi,

I have my files and R session on a portable hard drive to be able to 
work across computers since I have some extremely large files. I have 
just started doing this and generally it works as I expect. But after a 
while of using my R session, certain types of calls to open connections 
on the hard drive don't work. But I experience no problems 
opening/saving files on the portable hard drive using other programs.

In particular, if I explicitly call the entire folder path to the hard 
drive, I can save an object to file, for example. But if I just want to 
save it in the current working directory, without explicitly naming the 
entire path, then I have problems (I show an example below). I am using 
a package that assumes a certain file structure from the current working 
directory in order to find/write output, which is why I want to be able 
to rely on not explicitly calling the whole path. Furthermore, I was 
experimenting just now, and when I changed the current directory to 
another one, and then back to the removable hard drive, everything gets 
'reset' somehow and opening connections works again, just like when I 
first started up my session.

I am on Windows XP, R 2.4.0.

Thanks,
Elizabeth Purdom

example:
  getwd()
[1] I:/ICBP/Exon Array/Data
#explicit call to hard drive works...
  save(x,file=I:/ICBP/Exon Array/Data/tmp.rdata)
#unexplicit call relying on knowing working directory doesn't...
  save(x,file=tmp.rdata)
Error in gzfile(file, wb) : unable to open connection
In addition: Warning message:
cannot open compressed file 'tmp.rdata'

__
R-help@stat.math.ethz.ch mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.