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annotate DL/Majorization Minimization DL/softthreshold.m @ 211:0c7c20f3246c luisf_dev

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Added comments to ~/DL/Majorization Minimization DL/wrapper_mm_DL.m and ~/DL/Majorization Minimization DL/wrapper_mm_solver.m files.
author Aris Gretsistas <aris.gretsistas@elec.qmul.ac.uk>
date Wed, 21 Mar 2012 17:48:39 +0000
parents b14209313ba4
children
rev   line source
ivan@155 1 % Soft threshold operator for matrices
ivan@155 2 % [Y] = softthreshold(X,theta)
ivan@155 3 % X : input matrix
ivan@155 4 % theta : thresholding parameter
ivan@155 5 function [Y] = softthreshold(X,theta)
ivan@155 6 Y = X - min(theta,abs(X)).*sign(X);