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From |
"Nick Cox" <n.j.cox@durham.ac.uk> |

To |
<statalist@hsphsun2.harvard.edu> |

Subject |
RE: st: RE: -hhset- hrespnr? |

Date |
Fri, 14 Mar 2008 17:03:46 -0000 |

As hinted in my last post in this thread, <http://www.hsph.harvard.edu/cgi-bin/lwgate/STATALIST/archives/statalist .0803/date/article-322.html> which you did not respond to, you need to reshape. That may or may not mean using -reshape-. Check out the help, manual entry and FAQs for -reshape- in any case. You will need it sooner or later. You want to ignore everyone not a wife or a husband . drop if missing(agewife) & missing(agehusband) Then you could just exploit the fact that wife and husband are paired: . bysort hhid: replace agewife = agewife[3 - _n] if missing(agewife) . bysort hhid: replace agehusband = agehusband[3 - _n] if missing(agehusband) That may look a little tricky. Under -by:- the observation number _n is calculated within groups defined by the -by:- and takes on values 1 or 2 for the two observations of spouses. If _n is 1 then 3 - _n is 2 and if _n is 2 then 3 - _n is 1. Thus we always look in the other observation for the non-missing value when any value is missing. Alternatively, we could use a standard technique, sorting the non-missings into the first observation for each household: . bysort hhid (agehusband) : replace agehusband = agehusband[1] . bysort hhid (agewife) : replace agewife = agewife[1] Now the two observations for each -hhid- are identical and you can -keep- one, or -drop- one (same result). . by hhid : keep if _n == 1 Nick n.j.cox@durham.ac.uk Nirina F Yes, I agree because I only have one household data. And that is why I tried to use -hhset- but it did not work but I will try again and let you know. This is what I get which gives me zero observation when I run reg. list hhid linenum ageofwife ageofhusband +----------------------------------+ hhid linenum ageofwife ageofhusband ---------------------------------- 1. f2 1 . 52 2. f2 2 38 . 3. f2 3 . . 4. f2 4 . . 5. f2 5 . . ---------------------------------- 7. f41 1 . 33 8. f41 2 22 . 9. f41 3 . . 10. f41 4 . . What I would like to get something like: +----------------------------------+ hhid linenum ageofwife ageofhusband ---------------------------------- 1. f2 1 38 52 2. f41 1 22 33 but I don't know how to do it. On 3/7/08, Richard J Stoll <stoll@rice.edu> wrote: > Everyone is a husband or a wife right? So ageofwife is missing for all > husbands, therefore all those cases are dropped. Ageofhusband is > missing for all wives, so you lose the rest of the cases..... > > On Fri, 7 Mar 2008, Nirina F wrote: > > > Dear Nick, > > > > Thank you for taking the time to respond. I understand what you mean but > > > > actually, what I meant was that if I run > > > > "reg income ageofwife ageofhusband schoolingofwife schoolingofhusband " > > > > it gives me 0 observation because of how the explanatory variables > > were generated: > > > > ageofwife=age if wife==1 > > ageofhusband=age if husband==1 > > > > then used together ends up in intersection and here comes my problem. * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**st: -hhset- hrespnr?***From:*"Nirina F" <fstata@gmail.com>

**st: RE: -hhset- hrespnr?***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

**Re: st: RE: -hhset- hrespnr?***From:*"Nirina F" <fstata@gmail.com>

**RE: st: RE: -hhset- hrespnr?***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

**Re: st: RE: -hhset- hrespnr?***From:*"Nirina F" <fstata@gmail.com>

**Re: st: RE: -hhset- hrespnr?***From:*"Nirina F" <fstata@gmail.com>

**RE: st: RE: -hhset- hrespnr?***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

**Re: st: RE: -hhset- hrespnr?***From:*"Nirina F" <fstata@gmail.com>

**Re: st: RE: -hhset- hrespnr?***From:*Richard J Stoll <stoll@rice.edu>

**Re: st: RE: -hhset- hrespnr?***From:*"Nirina F" <fstata@gmail.com>

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