/home/john/.local/lib/python3.8/site-packages/sklearn/decomposition/_nmf.py:1710: ConvergenceWarning: Maximum number of iterations 200 reached. Increase it to improve convergence.
  warnings.warn(
Fri Sep 22 14:02:02 2023

signal_classify_nmf():
  Python version: 3.8.10
  scikit-learn version: 1.3.0
  Determine components of a signal using the signal dataset.
  Compare nonnegative matrix factorization (nmf)
  and principal component analysis.

  Generate the dataset
  Graphics saved as "signal_dataset.png"

  Measurement shape =  (2000, 100)
  Recovered signal shape =  (2000, 3)
  Graphics saved as 'signal_comparison.png'

signal_classify_nmf():
  Normal end of execution.
Fri Sep 22 14:02:03 2023