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Re: st: -save- a varlist


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: -save- a varlist
Date   Tue, 30 Oct 2012 16:35:15 +0000

I see. Thanks for making this clear to me, Nick

On Tue, Oct 30, 2012 at 4:10 PM, Jeph Herrin <stata@spandrel.net> wrote:
> Agree - but I was referring specifically to Austin's suggestion of using
> -outsheet- twice, then matching the labels back up to the values. I don't
> think that approach is very easy to implement.
>
> As I stated right off, using -label save- is the most useful suggestion, and
> does make the problem nearly trivial.
>
>
> Jeph
>
>
>
> On 10/30/2012 10:54 AM, Nick Cox wrote:
>>
>> This seems contradictory to me. I can e.g. -outsheet- a variable as
>> value labels and -label save- too. So, you can read the data back in
>> and then -encode- them. I would rather not do that, sure, but it's not
>> especially difficult and it could certainly be automated via
>> program(s).
>>
>> Nick
>>
>> On Tue, Oct 30, 2012 at 2:46 PM, Jeph Herrin <stata@spandrel.net> wrote:
>>>
>>> Thanks for the various tips, this last one (-label save-, which I have
>>> used
>>> in other contexts, but forgot about) being the most useful.
>>>
>>> Regarding the other comments:
>>>
>>>   * -outsheet- and -outfile- are obvious alternatives that don't really
>>>      solve the problem, in that labels are still lost
>>>   * unless of course I do it twice, once with and without value labels,
>>>      as suggested, but it's not trivial to recreate value labels that way
>>>      with the same underlying values
>>>   * per Austin's question, I can derive variables and save those
>>>      locally; I have many types of nested units, so generally I am
>>>      creating summary values for these different units (eg, patients,
>>>      physicians, hospitals) and want to save them out in separate files
>>>      for each type of unit. and there are some original variables (that I
>>>      didn't create) which I can also save locally because there is no
>>>      identifying data.
>>>
>>>
>>> On 10/30/2012 10:23 AM, Nick Cox wrote:
>>>>
>>>>
>>>> Note also -label save-.
>>>>
>>>> Nick
>>>>
>>>> On Tue, Oct 30, 2012 at 2:21 PM, Austin Nichols
>>>> <austinnichols@gmail.com>
>>>> wrote:
>>>>>
>>>>>
>>>>> Jeph Herrin <stata@spandrel.net>:
>>>>> And if you do that twice, the -nolabel- option can be used one of
>>>>> those times, so you have both values and value labels. But why can't
>>>>> you save the whole file locally, if you are allowed to save several
>>>>> variables locally?
>>>>>
>>>>> On Tue, Oct 30, 2012 at 10:17 AM, Nick Cox <njcoxstata@gmail.com>
>>>>> wrote:
>>>>>>
>>>>>>
>>>>>> As Daniel Feenberg underlined recently, you can -outsheet- part of the
>>>>>> data. In the same vein, -outfile- is another alternative.
>>>>>>
>>>>>> Nick
>>>>>>
>>>>>> On Tue, Oct 30, 2012 at 2:10 PM, Jeph Herrin <stata@spandrel.net>
>>>>>> wrote:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> I have a very large dataset (20gb) that I must access remotely, so
>>>>>>> that
>>>>>>> -use- and -save- each take about 30minutes. When I have this file
>>>>>>> open,
>>>>>>> I would like to create some secondary files that contain only 1-3
>>>>>>> variable.
>>>>>>>
>>>>>>> If the file were smaller, I would typically use -preserve-, -keep-,
>>>>>>> -save-, -restore- to do this. However, this takes a couple of hours.
>>>>>>> So
>>>>>>> I am using
>>>>>>>
>>>>>>> . export excel var1 var2 var3 using file.xls, replace
>>>>>>>
>>>>>>> Then later using -import excel- to read them back in. This is much
>>>>>>> faster, but has the obvious drawback that variable labels and other
>>>>>>> attributes are lost. It is also aesthetically unsatisfying.
>>>>>>>
>>>>>>> Can anyone suggest an alternative?
>>>>>
>>>>>
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