Function fractal_analysis::extract_normalised_subwindow

pub fn extract_normalised_subwindow(
    input: &[Vec<f64>], 
    offset: usize
) -> Vec<Vec<u8>>

Extracts a sub-window that's short enough (depending on the amount of channels of the EEG) and then normalises every sample depending on that specific sub-window length. For 19 electrodes, this leads to 16 samples per channel, normalised between 0 and 3 inclusive.