RE: st: RE: Bysort on non-selection variables

[Richard Williams <Richard.A.Williams.5@ND.edu>]

At 01:30 PM 7/20/2005 -0700, you wrote:
> Thank you kindly, Richard, for taking the time and effort to propose a 
> solution.  Unfortunately, -sort-ing as you suggest does not preserve the 
> "serial pernum" ordering I require for the conditions on the -bysort-.
>
> I'll have to try another tack.
Deb, perhaps you could give an example of what you want the sorted data to 
look like.  It sounds like you want to sort on serial, pernum and test, but 
for some reason you can't specify all three simultaneously.
(Why not -sort serial pernum test, stable- ? )  Also, perhaps the example 
you gave earlier wasn't representative of what you were trying to do, but 
it wasn't clear to me why the data needed to be sorted in the first place, 
i.e. I believe these commands

. use "C:\dlgarvey\Census data\IPUMS data\temp.dta", clear
. sort serial pernum, stable
. gen test=momloc
. bysort serial (test): replace test=8 if momloc==1
(30 real changes made)

are going to produce the same results whether you sort or not, i.e. the 
sorting isn't going to affect the results produced by -replace-.




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Richard Williams, Notre Dame Dept of Sociology
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