Re: st: Drop all that are listed in an external file

[miriam geringer <miriam.geringer@gmail.com>]

Thanks Lars. Good idea. It worked :)

2014-01-25 lars Folkestad <statalars@gmail.com>:
> Hi
> What if you merge the two files, and then use the _merge to identify what id's to keep and what do drop.
> Lars
>
>> Den 25/01/2014 kl. 16.50 skrev miriam geringer <miriam.geringer@gmail.com>:
>>
>> Hi Statalist,
>>
>> I have the following dataset:
>>
>> Identifier        Corresponding data
>> 1                    X
>> 2                    Z
>> 3                    D
>> 4
>> 4
>> 4
>> 5
>> 5
>> 5
>> 5
>> 6
>> 6
>> 6
>> 7
>> 8
>>
>> On the other hand, I have a *txt file, which includes only identifiers
>> that should be dropped from my dataset. A simple *txt including for
>> example:
>>
>> Identifier
>> 2
>> 3
>> 4
>>
>> Now, I want Stata to access this *txt file and drop all the
>> observations in the dataset (based on the Identifier) that are in this
>> specific *txt file. I know that I could just copy it into Stata, but
>> since the list is very long I would prefer an "external" link to this
>> file.
>>
>> After dropping, it should look like:
>>
>> Identifier        Corresponding data
>> 1                    X
>> 5
>> 5
>> 5
>> 5
>> 6
>> 6
>> 6
>> 7
>> 8
>>
>> Is something like this possible?
>>
>> Something like:
>> drop if identifier exists using C:/*txt
>>
>> Thanks!
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>
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