tcev-transformation 1.0.1

Library for common data transformations utilizing only the standard Python library and/or Numpy. Includes transposition, time series windowing, cross-correlation.

TCEV Data Transformation Library

Library for common data transformations used in machine learning models, utilizing only the standard Python library and/or Numpy. Includes transposition, time series windowing & cross-correlation.

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Description

The repository contains 3 data transformation and associated unit tests for the following functions:

• transpose2d -> a function that takes in a 2D matrix of real numbers and swaps the axis (standard transpose logic).
• window1d -> a function that converts a 1D list / np.array into window subsets of the input, given additional parameters on size of window, shift between windows & stride within a window.
• convolution2d -> a function that takes an input 2D array, a kernel 2D array and combines them to produce a 2D array using cross-correlation operations. Allows for an optional stride parameter, which determines the slide or "shift" between cross-correlation operations.

The repo has been packaged, built and published to PyPi.

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Dependencies

• Poetry
• Numpy
• Pytest (for running user tests only)

After cloning the repository, run bash command poetry install.

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Authors

Ernestas Vainorius @LinkedIn

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Version history

• v1.0.0:
  • Added an additional unit test for convolution2d for testing larger matrices.
  • Changed src directory name to tcev_transformation to allow easier to understand library import post publishing.
  • Finalized README.md.
  • Packaged, built and published repo to PyPi.
  • See change notes
• v0.3.0:
  • Created a convolution2d function that takes an input 2D array, a kernel 2D array and combines them to produce a 2D array using cross-correlation operations.
  • Created unit tests for checking convolution2d functionality and parameter intake.
  • See change notes
• v0.2.0:
  • Implemented window1d function, which allows to create window subsets from a starting input array/list, with additional parameters for window size, shift between each window, stride within a window.
  • Wrote unit tests for transpose2d & window1d functions
  • See change notes
• v0.1.0:
  • Created transpose2d function, which allows for transposition of any 2D real-number matrices
  • Base file structure created, including Poetry files for dependency management
  • See change notes