Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

RE: st: RE: survey completion "flag"


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: survey completion "flag"
Date   Fri, 18 Feb 2005 09:57:06 -0000

gen whichislast = . 
qui forval i = 1/170 { 
	replace whichislast = max(whichislast, `i') if Q`i' < . 
} 

Nick 
n.j.cox@durham.ac.uk 

Marilyn Matevia
 
> Let me push my luck a little...  If this is the right way to write
> the code (to evaluate which of 170 questions is the last question
> answered):
> 
> egen LASTRSP = rlast(Q001-Q170)
> 
> ... Is there a way to have it return the variable name (which is the
> question number) instead of the value of the response?
 
> > Have a look at -egen, rlast()-.

> > > I am a very new user of Stata, so I apologize in advance if this
> is
> > > a dumb question.  I'm still learning how Stata "thinks"
> (compared to
> > > SAS) and can't figure out how to tackle this:
> > >
> > > I have a data set of responses to a very long (170 questions)
> survey
> > > with many nested skip patterns, and about 2200 respondents.
> After
> > > working out the skip codes, I still have many "missing"
> observations
> > > for some items, and figure these are due to incomplete surveys.
> I
> > > want to create some kind of "completion flag" to see which
> > > respondents make it to the end of the survey, and - if they
> don't -
> > > to see which question is the respondent's last (which is
> complicated
> > > by the skip patterns).
> > >
> > > I'm just not coming up with a sensible way to do this in Stata.
> Can
> > > someone point me in the right direction?

*
*   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/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index