[R] how to inspect content of save() file

MPI puetz at mpipsykl.mpg.de
Wed Apr 22 21:39:17 CEST 2009


Duncan Murdoch wrote:
> On 4/22/2009 12:59 PM, Benno Pütz wrote:
>> Am 22.Apr.2009 um 17:21 schrieb Dimitri Liakhovitski:
>>
>>> Why do you use save()?
>>> Can't you write out data frame(s) with your variables in a .txt or a
>>> .csv file and then read in just the variable names?
>>>
>> I could, but ...
>>
>>>>
>>>>
>>>>
>>>> As save() writes a binary (and by default compressed) format that  
>>>> is not
>>>>
>>
>> ... the files I look at now have a size of around 875MB (and this is  
>> after compression of the binary format) - text files (even 
>> compressed)  are usually bigger.
>>
>> But while this question arose from these files, it is the structure 
>> of  the files I am after.
>
> It is not designed to be read bit-by-bit.  If you want to read only 
> part of the data, the only easy way is to write it in multiple files.
>
> You can read the documentation for the format in the source (see 
> src/main/serialize.c), but I don't think it would be easy to put 
> together a function to do what you want.
>
> Duncan Murdoch
>
>
Thanks, Duncan!
While this is not quite what I had hoped for I was afraid it would turn 
out this way.

Benno




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