st: Generating dummy variable with information of household survey from different observations

[Sumiko Hayasaka <sumi.hayasaka@gmail.com>]

I am trying to generate a dummy variable, with information from a
household survey, which can tell if a member of the household is a
father or not. I have a household id, an individual id (per
household), and a variable that tells me which individual id is marked
as being a father (members of the family are asked if their father
lives in the household and to give their father's individual id).
Therefore, I need to assign a 1 at the row in which someone at the
household said that was a father. To illustrate this, the data is
something like this (I am trying to get the "father" variable):

household_id   individual_id   father_row   father
------------------------------------------------------------------------
  1011                 1                      .                1
  1011                 2                      .                0
  1011                 3                      1               0
  1011                 4                      1               0

  1012                 1                       2               0
  1012                 2                       .                1

  1013                  1                      .                1
  1013                  2                      .                1
  1013                  3                      2               0
  1013                  4                      1               0
  1013                  5                      1               0


So, for example, members number 3 and 4 of household number 1011
stated that their father is individual number 1 in that household.
This means that I have to put the 1 of "father" (meaning the household
member is a father) at the row where father_row indicates (no matter
how many times this is done).

Is there any way in which I can do this? I really appreciate your
help! Thank you!
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