[Mne_analysis] regarding morphing in matlab

[Alexandre Gramfort]

> The GPL license may constitute a problem...

yes it is a problem as it means this code cannot be distributed with MNE.
A solution consist in replacing the 1 nearest neighbor with KD-Tree with a
BSD licensed one found in the matlab file exchange e.g.

http://www.mathworks.com/matlabcentral/fileexchange/7030-kd-tree-nearest-neighbor-and-range-search
http://www.mathworks.com/matlabcentral/fileexchange/15562-k-nearest-neighbors

Alex