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view DL/Majorization Minimization DL/softthreshold.m @ 243:1fbd28dfb99e unlocbox

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author bmailhe
date Wed, 29 Aug 2012 10:39:14 +0100
parents b14209313ba4
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% Soft threshold operator for matrices
% [Y] = softthreshold(X,theta)
% X : input matrix
% theta : thresholding parameter
function [Y] = softthreshold(X,theta)
Y = X - min(theta,abs(X)).*sign(X);