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periodogram smoothing question

2 messages · otunno at clemson.edu, stephen sefick

#
Hello -

I am currently simulating bivariate AR(1) time series data and have the
following line in my code:

Px=spec.pgram(ts.union(X,XX),spans=c(?,?))

The spans option is where I enter in the vector containing the Daniell
smoother numbers, but I don't know what a Daniell smoother is (hence the
question marks). Can somebody please tell me?

Is there another option where I can simply enter in the smoothing window
width?

Thanks, Ferebee
#
kernel("modified.daniell", 7)

this smoother is convolved with the data in other words it is
multiplying the values by a fraction "smoothing" the data.  My
thinking may be wrong, but this is how I understand it.
On Tue, Mar 3, 2009 at 6:28 PM, <otunno at clemson.edu> wrote: