is a technique to decompose signals into sine and cosine waves
- Deconstructing time series using FT
- Medium series, mostly on the math, parts 1 ****2 ****3 ****4 ****5
- Medium on What is a wavelet and how do we use it for DS
- Medium on the wavelet transform
- Medium multiple time series classification using continuous wavelet transformation and scalograms
- pywavelets - PyWavelets is open source wavelet transform software for Python. It combines a simple high level interface with low level C and Cython performance.