[help-gsl] Fwd: wavelet components (2008-09-19)
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From: |
"Saikat Ray Majumder" <saikatr2@.........> |
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Subject: |
Fwd: wavelet components |
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Date: |
Fri, 19 Sep 2008 10:26:34 -0500 |
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To: |
help-gsl@gnu.org |
Hi,
I would really appreciate if someone could help me with the questions posted
below.
Thanks in advance for your time,
SRM.
---------- Forwarded message ----------
From: Saikat Ray Majumder <saikatr2@.........>
Date: Tue, Sep 16, 2008 at 2:05 PM
Subject: wavelet components
To: help-gsl@gnu.org
Hi,
I am using the wavelet transforms in the GSL library and would like to
obtain the coefficients for a particular scale.
Say, for example, my input data vector has 2^16 data points, i.e. n = 2^16.
This would imply that there will be the following levels in the transform, J
= {0, 1, 2, 3, ....., 15}. My first question is if these levels correspond
to the following scales, a = {2^0, 2^1, 2^2, ...., 2^15}?
If yes then if I want to obtain the coeff for 2^3 scale then I should keep 8
components in level 3 and if the timing resolution of the input is dt then
those 8 components of level 3 will be located at b = {0, 2^3*dt, 2*2^3*dt,
3*2^3*dt, 4*2^3*dt, ...., 7*2^3*dt}, right?
I'll really appreciate if somebody could tell if I am understanding this
correctly or if I am missing something?
Thanks in advance for your time,
best,
SRM