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function y = softmargin(x) 
%SOFTMARGIN Support Vector Classification Softmargin 
% 
%  Usage: y = softmargin(x) 
% 
%  Author: Steve Gunn (srg@ecs.soton.ac.uk) 
 
  if (nargin ~= 1) % check correct number of arguments 
    help softmargin 
  else 
 
    y = x; 
    y(find(x < -1)) = -1; 
    y(find(x > 1)) = 1; 
 
  end