Sayer, Bryan
>
> I find the missing() function to be better in general when
> it can be used,
> which should evaluate ANY type of missing, including blanks
> for string
> variables.
Quite right. The fuller story includes
!missing(x)
and in Stata 8
!mi(x)
I like
< .
partly as a keystroke saver, but it is only
correct for numeric comparisons.
Nick
[email protected]
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