function x = HardThresh(y,t)
% HardThresh -- Apply Hard Threshold 
%  Usage 
%    x = HardThresh(y,t)
%  Inputs 
%    y     Noisy Data 
%    t     Threshold
%  Outputs 
%    x     y 1_{|y|>t}
%
	x   = y .* (abs(y) > t);

%
% Copyright (c) 1993-5.  Jonathan Buckheit, David Donoho and Iain Johnstone
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