Bug passing picks to epochs.average()

bug_epochs_avg_picks.py

#!/usr/bin/env python

import matplotlib.pylab as pl
import numpy as np
import mne
from mne.fiff import Raw
from mne.datasets import sample

data_path = sample.data_path()
raw_fname = data_path + '/MEG/sample/sample_audvis_filt-0-40_raw.fif'

raw = Raw(raw_fname, preload=True)

# Simply setting new bads.
raw.info['bads'] = ['MEG 0111', 'MEG 2443']

picks = mne.fiff.pick_types(raw.info, meg=True, exclude='bads')

tmin, tmax, event_id = -0.2, 0.5, 1
baseline = (None, 0)
reject = None

events = mne.find_events(raw, stim_channel='STI 014')
epochs = mne.Epochs(raw, events, event_id, tmin, tmax, proj=False, picks=picks,
                    baseline=baseline, preload=True, reject=reject)
evoked = epochs.average(picks)
evoked.plot()