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Posted: **Sat Apr 06, 2013 11:59 am**

Dear Eviews guys,

Would you mind to shed a light on a observation index, which confuses me.
Here an example:

create u 1 10
smpl 5 10
series y = 5
smpl @all
scalar obs = @ifirst(y) ' first non-missing observation index, supposedly to be = 5
series x(obs) = 3 ' I want x = 3 to be on 5th observation, but it appears on 6th!!! why is that???

Why series x starts from 6th observation but not 5th as any logic would suggest??
And one more thing. Why line "x(obs) = 3" writes from 6th observation and onwards rather than to appear solely on 6th (or 5th) observation?

Andrei

Posted: **Sat Apr 06, 2013 12:15 pm**

Code: Select all


Series x(5) = 3

Means create a series called X then set the 5 period lead of that series equal to 3.

In the same way that X(-1) is the one period lag, X(1) is the one period lead.

Posted: **Sun Apr 07, 2013 3:44 am**

ooh yea, of course. Thank you. stupid me

But what would be convenient way to set 5th observation x=3 in this example?? I mean without manipulating WF sample?

I tried to play around @isperiod, but failed to insert scalar, since it allows only strings..

Posted: **Sun Apr 07, 2013 5:06 am**

For somewhat craze reasons,

Code: Select all


Series x
X(5)=3

Probably works.

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