Update mne/preprocessing/optical_density.py

Co-Authored-By: Eric Larson <[email protected]>
mne-tools · Oct 2, 2019 · fd8d1cc · fd8d1cc
1 parent 65fce27
commit fd8d1cc
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/mne/preprocessing/optical_density.py b/mne/preprocessing/optical_density.py
@@ -30,7 +30,8 @@ def optical_density(raw):
     for ii in picks:
         data = -1.0 * log(divide(raw.get_data(ii).T,
                           ones((len(raw), 1)) * data_means[ii]))
-        raw._data[ii, :] = data.T
+        raw._data[ii] /= means[ii]
+        np.log(raw._data[ii], out=raw._data[ii])
         raw.info['chs'][ii]['coil_type'] = FIFF.FIFFV_COIL_FNIRS_OD
 
     return raw