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st: AW: RE: AW: AW: AW: AW: Error in egen rank(), unique?
My apologies.
Indeed the replace command as I constructed it is/was the mistake.
To your earlier post:
To 2.1/2.2 I agree that rank ignores missings and that it should be.
Marc
-----Ursprüngliche Nachricht-----
Von: [email protected] [mailto:[email protected]] Im Auftrag von Nick Cox
Gesendet: Dienstag, 3. November 2009 18:05
An: [email protected]
Betreff: st: RE: AW: AW: AW: AW: Error in egen rank(), unique?
This is the same problem as bit you last time. See my earlier post.
You are overwriting the results of -egen, rank()- with your own -replace-. You are responsible for this, not -egen-.
Nick
[email protected]
Kaulisch, Marc
I see the problem or a counter-intuitive result as follows:
The egen rank(), unique gives the following ranks:
1 2 3 3
If the sequence is 2007m8 2008m5 . 2009m3
In my opinion it is counter-intuitive because
1) I understand unique as giving not identical ranks - but it does if a missing is inserted
2) I would think that a rank command sorts the values in the var on its own and does not need help to perform this
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