not return the half that is the same
# by symmetry)
sum(x*x)
[1] 16
sum(sp$spec)
[1] 8
Date: Fri, 15 Oct 2004 19:55:40 -0400
From: Giuseppe Pagnoni [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Subject: [R] power in a specific frequency band
Dear R users
I have a really simple question
Dear R users
I have a really simple question (hoping for a really simple answer :-):
Having estimated the spectral density of a time series x (heart rate
data) with:
x.pgram - spectrum(x,method=pgram)
I would like to compute the power in a specific energy band.
Assuming that frequency(x)=4
