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RE: st: RE: puzzling "missing" before and after "gen newvar = mdy(a, b, c)"
From |
"Nick Cox" <[email protected]> |
To |
<[email protected]> |
Subject |
RE: st: RE: puzzling "missing" before and after "gen newvar = mdy(a, b, c)" |
Date |
Fri, 12 Jan 2007 15:54:47 -0000 |
I suggest we sort this out off-list so long as you
are willing to send me a copy of your data.
Nick
[email protected]
Michael McCulloch
> I'm sorry; sent the wrong commands. What I meant to send was:
>
> Very elegant! However, it misses the "99"'s. Example:
> . describe datedx
> storage display value
> variable name type format label variable label
>
> --------------------------------------------------------------
> -----------------
> datedx double %10.0g DATE
> OF DIAGNOSIS
> . drop if substr(string(datedx),5,2) == "99" |
> substr(string(datedx),7,2)
> == "99"
> (0 observations deleted)
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