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- 15:08, 17 October 2025 Davrot talk contribs created page PCA (Created page with "== The goal == PCA allows to extract an orthogonal basis system for a set of data. Questions to [mailto:davrot@uni-bremen.de David Rotermund] == Test data == <syntaxhighlight lang="python">import numpy as np import matplotlib.pyplot as plt rng = np.random.default_rng(1) a_x = rng.normal(0.0, 1.0, size=(5000))[:, np.newaxis] a_y = rng.normal(0.0, 1.0, size=(5000))[:, np.newaxis] ** 3 data_a = np.concatenate((a_x, a_y), axis=1) b_x = rng.normal(0.0, 1.0, size=(5000))[...") Tag: Visual edit
