My thoughts on the questions.
(1a) IPUMS-USA creates some routines that construct the family
interrelationship variables. You can check it out.
http://usa.ipums.org/usa/chapter5/chapter5.shtml
(1b) I think your expectation that husband and wife will give the same
answer is wrong. They are not necessarily the first partner for each
other.
(3) I guess that you have three variables: var2, sex, year of birth.
If so, I think you should calculate mean of each category by female
and year of birth, which will be more meaningful.
(4) Follow Nick's suggestion.
Hope it helps.
Le
On 11/24/06, Nick Cox <[email protected]> wrote:
Nirina F. had problems sending this to the list.
I edited slightly using the -cmdname- convention.
Nick
[email protected]
-----Original Message-----
I have a few questions:
1- How do I create husband and wife variable in my data where
I have data on marital status, line number of respondent in
the household, the sex, etc..
Then when I have identified the husband and wife, how do I test
whether they gave the same answer on the question of number of
kids they have. This is basically to test whether there was mistake in the data.
2- var2 is categorical having 4 answers,sex, year of birth.
Plot var2 on y axis, and year of birth on x axis but only for
female. I tried -tw histogram- but it doesn't give the graph
I would like to get.
3- I have the following:
year of birth: 4 digits
year of current marriage with 4 digit years but when respondent
don't know or for other reasons, they can respond to 9999
so now, if I would like to calculate age at marriage, I get
for example 8069 (9999-1930) for people having responded 9999
for the question year of current marriage.
Could you suggest me please how I can transform this into
meaningful values or anything else?
4- does anyone know how to do -probit- with fixed effect? it seems
that the estimates will be inconsistent so has anyone found a
way of getting away from the incidental parameter problem?
Thank you very much in advance.
*
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--
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Le Wang, Ph.D.
Minnesota Population Center
University of Minnesota
(o) 612-624-5818
*
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* http://www.ats.ucla.edu/stat/stata/
