9d2903af6042c8576693a5b8b060169ce897db56
denoise from extract_noise.py to utils.py
See next commit leveraging it in `split_and_compare_prnus_of_subgroups.py`
denoise from extract_noise.py to utils.py
See next commit leveraging it in `split_and_compare_prnus_of_subgroups.py`