[SciPy-dev] Continuous Wavelet Transform for SciPy

Sean Arms lesserwhirls@gmail....
Wed Mar 4 08:32:39 CST 2009

Greeting Chuck,

On Wed, Mar 4, 2009 at 2:09 AM, Charles R Harris
<charlesr.harris@gmail.com> wrote:
> Hi Sean,
> On Mon, Mar 2, 2009 at 8:25 PM, Sean Arms <lesserwhirls@gmail.com> wrote:
>> Greetings!
>>        My name is Sean Arms and I'm a graduate student at the University
>> of Oklahoma in the School of Meteorology.  As part of my PhD research, I'm
>> studying coherent structures in atmospheric boundary layer turbulence,
>> primarily using in-situ observations and, secondarily, Direct Numerical
>> Simulation (DNS) output.  One common approach for detecting coherent
>> structures in observational datasets relies on the use of the global wavelet
>> power spectrum as estimated from a continuous wavelet transform (CWT).  I
>> know SciPy has a DWT impementation, and I've already been in contact with
>> Filip.  He recommeded that I post my code in hopes that it would add some
>> momentum to the python-cwt development and create some feedback (I'm
>> currently looking for a good place to post my code).  I've implemented the
>> CWT using pure python (that is, I did not write any C extension code myself
>> - nothing to build), along with one mother wavelet (second derivitive of a
>> Gaussian, or the Mexican Hat) - I'll be adding more Mother wavelets as I go
>> along.  I've made it a point to (try to) design my MotherWavelet class to be
>> easily extendable.  I'm working on documentation and a few tests at the
>> moment, but so far my code compares well with other wavelet routines.
>>      The point of this email is to introduce myself and let the SciPy dev
>> community know that I am willing to help develop CWT support for SciPy -
>> I'll already be doing the work for my research, so I might as well put in
>> the extra effort to make is usable by the larger community!
> If you are running on Linux someone here should be able to give you some
> pointers on using the git mirror and posting your code for review. There
> will be a howto page at some point...
> Chuck

I am running Linux and currently use SVN, but I do have GIT
installed...GIT was something that I wanted to check out, so now I
have the perfect reason!


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