pyGroupedTransforms

Fast Grouped Transformations as introduced in Bartel, Potts, Schmischke, 2021 .

pyGroupedTransforms provides the following fast algorithms: nonequispaced fast transformation with exponential functions for grouped index sets based on the NFFT (non-equispaced fast Fourier transform) nonequispaced fast transformation with cosine functions for grouped index sets based on the NFCT (non-equispaced fast cosine transform)

Getting started

The pyGroupedTransforms package can be installed via pip:

pip install -i https://test.pypi.org/simple/ pyGroupedTransforms

Read the documentation for specific usage information.

Requirements

• Python 3.8 or greater
• pyNFFT3 0.2.2 or greater
• NumPy 2.0.0 or greater
• SciPy 1.16.0 or greater