Re: [Gretl-users] genr dummy on annual data
artur bala escribió:
Hello,
On an annual dataset spanning from 1970 to 2010, I want to create a
dummy valid from 2005 and on.
I tried the following command line :
* genr D = (t > "2005")*
but the newly created variable D has zeros only. Same result through the
GUI.
Note that this script does work fine for a monthly dataset (let's say
*genr D = (t > "2005:01")*).
best,
artur
Artur,
for annual data, "t" and "obs" refers to the 1-entry index. Thi is
exactly the same as if you put a single number, genr D= t>2005, with
quarterly or monthly data. This is indicating the observation at the
2005th place in the series. For the behaviour that you want, you should use
genr D = (t > obsnum(2005))
(see discussion in gretl-dev list some months ago, initiated at the
message:
http://lists.wfu.edu/pipermail/gretl-devel/2010-February/002461.html )
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