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view DL/Majorization Minimization DL/softthreshold.m @ 165:775caafd5651

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Added tag release_1.9 for changeset 4205744092e6
author Ivan Damnjanovic lnx <ivan.damnjanovic@eecs.qmul.ac.uk>
date Wed, 07 Sep 2011 14:17:55 +0100
parents b14209313ba4
children
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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);