Note that your code can be telescoped to
drop if mi(rnd_date - frm_first_date)
Nick
[email protected]
Alan Neustadtl
> When reading in the data, Stata read does read an "extra" 16
> observations for each dataset. So, both Friedrich's and Nick's
> solutions work very well.
>
> The data contain eight contiguous date variables as well, and it is
> impossible for all eight to be missing (at least one has to be
> non-missing).
>
> So, while less elegant, the following also works in my
> particular application:
>
> gen x=1 if rnd_date- frm_first_date==.;
> drop if x==1;
> drop x;
>
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