### Proposed documentation enhancement https://mne.tools/stable/auto_tutorials/clinical/60_sleep.html#design-a-scikit-learn-transformer-from-a-python-function ``` a=eeg_power_band(epochs) a.shape ``` This is shown to return the shape of (n, 5). 5 is probably the frequency band. Here, 5 bands are defined, but I come up with 10. 
Proposed documentation enhancement
https://mne.tools/stable/auto_tutorials/clinical/60_sleep.html#design-a-scikit-learn-transformer-from-a-python-function
This is shown to return the shape of (n, 5). 5 is probably the frequency band. Here, 5 bands are defined, but I come up with 10.