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st: RE: AW: year is not regularly spaced

From   "Renger van Nieuwkoop" <>
To   <>
Subject   st: RE: AW: year is not regularly spaced
Date   Tue, 18 Aug 2009 16:40:24 +0200

Hi Martin
Thanks. I also found Newey2 for using Newey with panel data (which is what I am trying to do). Here it works fine.

-----Original Message-----
From: [] On Behalf Of Martin Weiss
Sent: Tuesday, August 18, 2009 3:55 PM
Subject: st: AW: year is not regularly spaced


-newey- does have an (undocumented?) -force- option, which would override the error message. But there is a point to it as you are feeding it "1997"
three times in a row, which a time-series command cannot digest... 


-----Ursprüngliche Nachricht-----
[] Im Auftrag von Renger van Nieuwkoop
Gesendet: Dienstag, 18. August 2009 15:31
Betreff: st: year is not regularly spaced

I have problems with panel date. I searched in the Statalist and found some answers, but they didn't seem to help me.
I have the following data in long form

ktnr  year  yoh0  .... And some more variables
1	1997   23
2     1997   11
3     1997   12
1     1998   24
2     1998   12
3     1998   14

I ran the following command:
	tsset ktnr year

With the following output
       panel variable:  ktnr (strongly balanced)
        time variable:  year, 1997 to 2001
                delta:  1 unit

And then wanted to run newey
   newey yoh0 d97 d98 d99 d00 pcslaac f pcglatot steu1 parla, lag(1)

And got the message:
	year is not regularly spaced

Year is defined as  int    %8.0g and there are no missing values for all
the variables.

Why do I get this error?




Renger van Nieuwkoop
Ecoplan - Thunstrasse 22
3005 Bern Switzerland
Tel. +41 31 356 61 61

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