A module for calculation of PCA and PLS with the NIPALS algorithm. Based on the R packages nipals and pcaMethods as well as the statistical appendixes to “Introduction to Multi- and Megavariate Data Analysis using Projection Methods (PCA & PLS)” by Eriksson et. al. Tested to give same results as the above packages and Simca, with some rounding errors.
Free software: MIT license
Installation
pip install nipals
Documentation
See https://github.com/fredrikw/python-nipals/blob/master/docs/nipals_demo_iris.ipynb for an example and the tests at https://github.com/fredrikw/python-nipals/tree/master/tests.
Development
To run the all tests run:
tox
Note, to combine the coverage data from all the tox environments run:
Windows |
set PYTEST_ADDOPTS=--cov-append tox |
|---|---|
Other |
PYTEST_ADDOPTS=--cov-append tox |
Changelog
0.5.8 (2024-06-20)
Fix linewidth attributes on plots to allow saving the plots
0.5.6 (2023-10-20)
Updated supported Python versions
0.5.5 (2022-09-28)
Added check for X-matrix with row full of NAs
0.5.4 (2021-05-07)
Fixed Packaging error (0.5.3 was never released)
0.5.3 (2021-05-06)
Fixed error on numpy version >= 1.19
Updated supported versions
Moved CI to Github Action (pt 1)
0.5.2 (2019-06-04)
Added compatibility with Nipals objects saved from pre-0.5 versions
0.5.1 (2019-05-23)
Added checks for, and optional removal of, zero variance in variables
Added support for Python 3.7
(0.5.0 was never released due to failing CI tests)
0.4.3 (2018-04-24)
Fixed test that failed after last bug fix
0.4.2 (2018-04-24)
Fixed bug with selection of starting column for cross validation of PCA
0.4.1 (2018-04-09)
Fixed bug with cross validation of PCA
0.4.0 (2018-04-09)
Added cross validations
Added calculation of distance to model with plots
Added model overview plots
0.3.0 (2018-04-05)
Added R2X and R2Y to the PLS class
Made plot color selectable also for scoreplots without classes
0.2.0 (2018-03-29)
Added a PLS class
Improved plotting
Fixed some problems with missing/infinite values
0.1.0 (2018-03-14)
First release on PyPI.
1 maintainer
Metadata
1 maintainer
Release files for nipals 0.5.8
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Total release size: 305.6 kB
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