% method of class @signal
%
% INPUT VALUES:
%
% RETURN VALUE:
%
%
% (c) 2003, University of Cambridge, Medical Research Council
% Stefan Bleeck (stefan@bleeck.de)
% http://www.mrc-cbu.cam.ac.uk/cnbh/aimmanual
% $Date: 2003/01/17 16:57:43 $
% $Revision: 1.3 $
function sig=minus(a,b)
b=columnvector(b); % just to make sure that it is a columnvector
sig=a+(-b);
