I think you need to implement this yourself.
If you have a variable holding
the previous values, then after each change
you compare latest version with the previous values;
exit if no differences; otherwise replace
previous with latest, and loop again.
Nick
[email protected]
David Fisher
> I am attempting to create a "while" loop that executes, amongst other
> things, a "replace" command on a particular variable. I
> would like this
> loop to continue until the "replace" command cannot make any
> more changes to
> the data. In order to do this I would like to be able to
> access the number
> of (real) changes made by the "replace" command, so that I
> can say something
> like "loop while (number of real changes)!=0". Is there a
> way to do this in
> Stata? I thought there might be an underscore variable that
> would do this,
> but I can't find one.
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