[R-SIG-Mac] File creation date

[Loren Engrav]

Oh my, save() is so much better than diddling with attr()
Thank you

By the way
In Dec 2007 when I was getting up 64bit R to read/process 81 .cel files, you
were fundamental with that also


> From: Kasper Daniel Hansen <khansen at stat.berkeley.edu>
> Date: Thu, 30 Oct 2008 10:13:18 -0700
> To: Loren Engrav <engrav at u.washington.edu>
> Cc: "r-sig-mac at stat.math.ethz.ch" <r-sig-mac at stat.math.ethz.ch>
> Subject: Re: [R-SIG-Mac] File creation date
> 
> Loren, the easiest solution to your problem is to save objects in
> individual files, like
> 
> save(BigComputation, file = "BigComputation.rda")
> 
> that way you just have one object in each file and can use the file
> time stamp.
> 
> Using attributes are of course another approach.
> 
> Kasper
> 
> On Oct 30, 2008, at 9:57 , Loren Engrav wrote:
> 
>> Thank you
>> 
>> That is too bad as date time of work is important
>> 
>> But, going forward, maybe I can learn how to set the date time in the
>> objects attributes when it is important
>> 
>> Like I found a discussion on this topic from 2004 which suggests
>> attr(obj, "timestamp") <- Sys.time()
>> And then
>> attr(obj, "timestamp")
>> 
>> So I tried
>> attr(obj, "datetime") <- date()
>> Then
>> attr(obj,"datetime")
>> 
>> And it works so I can do that
>> 
>> But then as I read the ref manual,
>> file.info tries to show mtime, ctime and atime
>> But I guess that does not apply to objects within a workspace
>> 
>> 
>>> From: Simon Urbanek <simon.urbanek at r-project.org>
>>> Date: Wed, 29 Oct 2008 12:08:53 -0400
>>> To: Loren Engrav <engrav at u.washington.edu>
>>> Cc: "r-sig-mac at stat.math.ethz.ch" <r-sig-mac at stat.math.ethz.ch>
>>> Subject: Re: [R-SIG-Mac] File creation date
>>> 
>>> 
>>> On Oct 28, 2008, at 19:03 , Loren Engrav wrote:
>>> 
>>>> Sorry my email was unclear
>>>> I am looking at files within a saved R workspace
>>>> 
>>>> The date of the workspace file is 3/18/2007 but I don't think all of
>>>> the
>>>> files were created on that date as I think I used the workspace over
>>>> some
>>>> period of time
>>>> 
>>>> So I would like the creation date of the files WITHIN the workspace
>>>> 
>>> 
>>> There is no file *within* the workspace. The workspace *is* one file
>>> of serialized R objects and they themselves don't have any timestamp
>>> associated with them. So all you can find out is when you last saved
>>> (or accessed) the workspace, that's all.
>>> 
>>> Cheers,
>>> S
>>> 
>>> 
>>>>> From: Steve Lianoglou <mailinglist.honeypot at gmail.com>
>>>>> Date: Tue, 28 Oct 2008 18:48:34 -0400
>>>>> To: Loren Engrav <engrav at u.washington.edu>
>>>>> Cc: "r-sig-mac at stat.math.ethz.ch" <r-sig-mac at stat.math.ethz.ch>
>>>>> Subject: Re: [R-SIG-Mac] File creation date
>>>>> 
>>>>> Hi,
>>>>> 
>>>>> On Oct 28, 2008, at 6:00 PM, Loren Engrav wrote:
>>>>> 
>>>>>> Ok, I give up
>>>>>> 
>>>>>> I am exploring some workspace files created long long ago
>>>>>> And need the creation date of some of the files
>>>>>> 
>>>>>> I try ls() but cannot see the parameters to show creation date
>>>>>> I try file.info and get NA
>>>>>> How do I get creation date to show
>>>>> 
>>>>> One way is to navigate to the file via the Finder, select it, and
>>>>> hit
>>>>> Cmd-I (File > Get Info)
>>>>> 
>>>>> You'll find what you're looking for in the "General" section.
>>>>> 
>>>>> HTH,
>>>>> -steve
>>>>> 
>>>>> --
>>>>> Steve Lianoglou
>>>>> Graduate Student: Physiology, Biophysics and Systems Biology
>>>>> Weill Medical College of Cornell University
>>>>> 
>>>>> http://cbio.mskcc.org/~lianos
>>>>> 
>>>>> 
>>>>> 
>>>> 
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>>> 
>> 
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