[Gretl-users] Scaled Frequency in Periodogram

[Thomas La Bone]

Yes, that seems to be what Gretl is doing. Thanks. The next question is 
why? What is the advantage of scaling the frequency in this way?

Tom


Ignacio Diaz-Emparanza wrote:
> 
> I don't have this reference, but looking at the numbers I can guess that:
> 
> if T is the period, and Nobs the number of observations, the scaled frequency 
> is 
> 
> f=Nobs/T, 
> 
> or said in another way, if w is the angular frequency, (w=2*pi/T)
> 
> f=w*(Nobs/2*pi)
>