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Posted: **Fri Sep 17, 2021 10:32 pm**

Hi!

I wonder how to generate a time-varying constant series such as

y=1, if 1999M1--2009M1
y=2, if 2009M2--2013M3
y=3, if 2013M4--2018M1
......

Thanks

Posted: **Sat Sep 18, 2021 6:48 am**

kpr wrote:I wonder how to generate a time-varying constant series such as

y=1, if 1999M1--2009M1
y=2, if 2009M2--2013M3
y=3, if 2013M4--2018M1

Code: Select all

smpl 1999M1 2009M1
series y = 1
smpl 2009M2 2013M3
y = 2
smpl 2013M4 2018M1
y = 3
smpl @all

Posted: **Mon Dec 13, 2021 12:40 am**

So it seems not possible to avoid using SMPL so many times. Thanks for the reply.

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