[R] Save and load workspace in R: strange error.

[Hongxiao Zhu]

Tony,

Thanks for return. Actually, the data object 'junk4.RData' was created but 
have size 0. It seems no data was saved. But the real data that I 
want to load have data in it, which I can't load use my own user account. 
But if using other people's user account under the same system, it can be 
loaded.

All the files has the following property if I use ls -l:
-rw-r--r--

The OS I used is windows xp. But I use SSH to connect to the unix server.

I have been using this server for a long time, this error happened since 
some day and from then on, I can never load/save workspace.

Hong

**********************************************
  *  Hongxiao Zhu                              *
  *  Department of Statistics, Rice Univeristy *
  *  Office: DH 3136, Phone: 713-348-2839      *
  *  http://www.stat.rice.edu/~hxzhu/          *
  **********************************************

On Wed, 3 Oct 2007, Tony Plate wrote:

> Did you check whether 'junk4.RData' was created and what its length was - 
> maybe an empty file is being created.  Is there some sort of quota or 
> permissions problem?  My suggestion would be to look at the size and 
> permissions on the directory and the file.  If you need more help, I would 
> suggest posting more details back to the list, e.g., what OS you are using, 
> and a directory listing that shows file sizes and permissions (i.e., as you 
> get with 'ls -l' on Unix systems.)
>
> -- Tony Plate
>
> Hongxiao Zhu wrote:
>> Hi,
>> 
>> I tried to load a .RData object on unix system using R, it gives error:
>> 
>> Error: restore file may be empty -- no data loaded
>> In addition: Warning message:
>> file 'junk3.RData' has magic number ''
>>     Use of save versions prior to 2 is deprecated
>> 
>> This happens only for using MY user account for the Unix system. I tried to 
>> use a friends's user account to load the same data object, it is
>> fine. And it never happened to me before until sometime last week.
>> And This error happens even when I generate a simple random number
>> from my user account and save it, and load it again.(So obviously it is not 
>> a R version mismatch problem). Does anybody know what happened?
>> 
>> Here is an example what happened:
>> 
>>> x=rnorm(100)
>>> save.image('junk4.RData')
>>> load('junk4.RData')
>> Error: restore file may be empty -- no data loaded
>> In addition: Warning message:
>> file 'junk4.RData' has magic number ''
>>     Use of save versions prior to 2 is deprecated
>> 
>> Thanks for any suggestion.
>> 
>> Hongxiao
>> 
>> 
>> **********************************************
>>   *  Hongxiao Zhu                              *
>>   *  Department of Statistics, Rice Univeristy *
>>   *  Office: DH 3136, Phone: 713-348-2839      *
>>   *  http://www.stat.rice.edu/~hxzhu/          *
>> 
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>> 
>
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