Gregory Lee

Results 318 comments of Gregory Lee

@jier, upon re-reading I see maybe you are specifically requesting this for the standard, decimated DWT rather than SWT? I think for the DWT case, you just need to rescale...

Thanks @hgomersall. There was some prior discussion of adding this transform in #58 and #253. Do you happen to recall the source of the q-shift filter coefficients in your implementation?...

> The original motivation for my code (which took me a while to publish) was to gain a deep understanding, so I'm sure it has use in the community, though...

@rom1504, that looks like pip did not automatically install NumPy as specified in the `pyproject.toml` file's build requirements. We have not tested on the AWS Graviton2 platform, so it is...

> Do you believe we could add this to pywt ? Yes, I think it would be a good addition. > If yes, what would be the roadmap to do...

Hi @mattbit. In terms of implementation, the wavelets themselves are defined in C and Cython code. Specifically for the CWT, the primary files that would need to be modified are:...

Also, I am not a licensing expert, but I don't know that it is okay to work from that jLab Matlab toolbox code unless you were to get specific permission...

Thanks for looking at this @amanita-citrina. I will ping @OverLordGoldDragon, who has also been looking at CWT recently (e.g. #570), for awareness. In general, it will be good for PyWavelets...

Taking a quick look at the following section of Torrence's code: https://github.com/chris-torrence/wavelets/blob/master/wave_python/waveletFunctions.py#L170-L182 It appears that he defines the wavelet directly in the frequency domain (whereas the corresponding formulas in PyWavelets...

@v0lta that sounds nice. I actually have a library with a CuPy-based implementation that had a number of additional discrete wavelet transforms (like dual-tree wavelets, etc.). I was previously using...