'(Re-)Normalize projection vectors after subselection.
Applying projection after sub-selecting a set of channels that
were originally used to compute the original projection vectors
can be dangerous (e.g., if few channels remain, most power was
in channels that are no longer picked, etc.). By default, mne
will emit a warning when this is done.
This function will re-normalize projectors to use only the
remaining channels, thus avoiding that warning. Only use this
function if you\'re confident that the projection vectors still
adequately capture the original signal of interest.'

def normalize_proj(self):

    _normalize_proj(self)
