samer@0: % or - parallel sink combinator
samer@0: function s=or(s1,s2), 
samer@0: 	c1=1:channels(s1);
samer@0: 	c2=channels(s1) + (1:channels(s2));
samer@0: 	s=sinkbinop(@vertsplit,@plus,s1,s2);
samer@0: 	function [y1,y2]=vertsplit(x)
samer@0: 		y1=x(c1,:);
samer@0: 		y2=x(c2,:);
samer@0: 	end
samer@0: end
samer@0: