ENH - ensure datachannel to be a column vector to avoid unexpected behaviour

Author: schoffelen

contrib/spike/ft_spike_xcorr.m

@@ -128,7 +128,7 @@
 doShiftPredictor  = strcmp(cfg.method, 'shiftpredictor'); % shift predictor
 
 % determine the corresponding indices of the requested channel combinations
-cfg.channelcmb = ft_channelcombination(cfg.channelcmb, spike.label,true);
+cfg.channelcmb = ft_channelcombination(cfg.channelcmb, spike.label(:), true);
 cmbindx        = zeros(size(cfg.channelcmb));
 for k=1:size(cfg.channelcmb,1)
   cmbindx(k,1) = strmatch(cfg.channelcmb(k,1), spike.label, 'exact');

utilities/ft_channelcombination.m

@@ -58,6 +58,9 @@
 if nargin<3 || isempty(includeauto), includeauto = 0; end
 if nargin<4 || isempty(dirflag),     dirflag     = 0; end
 
+% ensure that datachannel is a column vector
+datachannel = datachannel(:);
+
 if ischar(channelcmb) && strcmp(channelcmb, 'all')
   % make all possible combinations of all channels
   channelcmb = {'all' 'all'};