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Re: st: Need help with working across variables
From
Nick Cox <[email protected]>
To
[email protected]
Subject
Re: st: Need help with working across variables
Date
Sun, 10 Feb 2013 10:50:23 +0000
See
http://www.stata.com/support/faqs/data-management/listing-observations-in-group/
-egen- is not needed here.
bysort id (whatever) : gen same = whatever == whatever[1] | missing(whatever)
Any non-missing numeric values are sorted to the beginning of each group.
This is really is an FAQ: e.g.
http://www.stata.com/statalist/archive/2013-01/msg00502.html
Nick
On Sun, Feb 10, 2013 at 5:57 AM, Cory Smith <[email protected]> wrote:
> You'll need the "by" command if you have used it before.
>
> Cory
>
> On Sun, Feb 10, 2013 at 12:56 AM, Cory Smith <[email protected]> wrote:
>> All non-missing observations will be the same iff the minimum value
>> equals the maximum value. You can fill in the rest given the previous
>> code, I think.
>> On Sun, Feb 10, 2013 at 12:53 AM, Michael Stewart
>> <[email protected]> wrote:
>>> Dear Cory,
>>> This works,
>>> Thanks a lot
>>> on the same lines have another question
>>>
>>> id var
>>> 1 2
>>> 1 2
>>> 1 3
>>> 1 2
>>> 2 1
>>> 2 1
>>> 2 1
>>> 2 .
>>> 2 1
>>> 3 1
>>> 3 2
>>> 3 4
>>>
>>> How do I check of all(nonmissing) observations for a particular id are the same
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