[SciPy-dev] Continuous Wavelet Transform for SciPy

Sean Arms lesserwhirls@gmail....
Thu Nov 12 10:24:12 CST 2009


     I just wanted to let everyone know that I've updated the CWT
package and updated the TRAC ticket: (current version tagged as 0.2.1
on github).

  project git repo:


  code review:


     (the old code review located at
http://codereview.appspot.com/40099 is no longer valid).


Sean Arms
Graduate Research Assistant
School of Meteorology
University of Oklahoma

On Mon, Mar 2, 2009 at 9:25 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!
> Cheers!
> Sean Arms
> Graduate Research Assistant
> School of Meteorology
> University of Oklahoma

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