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Re: st: Identifying subfamilies (2nd+ marriages) within records of families


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Identifying subfamilies (2nd+ marriages) within records of families
Date   Wed, 1 Feb 2012 23:30:47 +0000

Good. Now retract the slur on my blonde friends and family members!

Nick

On Wed, Feb 1, 2012 at 11:26 PM, Anna Reimondos <areimondos@gmail.com> wrote:
> Thanks Nick- that worked perfectly!!
> Much appreciated,
> Anna
>
> On Thu, Feb 2, 2012 at 10:10 AM, Nick Cox <njcoxstata@gmail.com> wrote:
>> Blonde moment!!!
>>
>> Sounds like
>>
>> bysort family (reg) : gen familynum = sum(reg != reg[_n-1]) - 1
>>
>> With this definition, I am assuming that -family- is string (else how
>> can a value be empty?) and  the wife herself is labelled 0.
>>
>> There would be a small tweak  needed if -family- were really numeric.
>>
>> Nick
>>
>> On Wed, Feb 1, 2012 at 10:53 PM, Anna Reimondos <areimondos@gmail.com> wrote:
>>
>>> I have a dataset of families which looks something like this:
>>>
>>> The first variable is a family id, then there is a registration
>>> number, and a variable identifying whether the person is the wife,
>>> husband or child.
>>> In the example below there are two families. In the first family there
>>> is a wife, husband and kids. In the second family the woman has had 2
>>> marriages. In the first she had 2 children, and in the second marriage
>>> she had one child. What I would like to do is create a variable called
>>> 'familynum' which will number the different families within the main
>>> family.
>>>
>>> NB: There is no registration or familynum for the woman.
>>>
>>>     family   reg        person        familynum
>>>        1                       Wife    (1)
>>>        1       693             Husband(2)      1
>>>        1       693             Child   (3)             1
>>>        1       693             Child   (3)             1
>>>        2                       Wife    (1)
>>>        2       542             Husband(2)      1
>>>        2       542             Child   (3)             1
>>>        2       542             Child   (3)             1
>>>        2       879             Husband(2)      2
>>>        2       879             Child   (3)             2
>>>
>>>
>>> I have done similar things before, and I know the solution is probably
>>> very obvious...but I am having a blonde moment.
>>
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