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view DL/Majorization Minimization DL/softthreshold.m @ 188:2f5ce7c8792a danieleb

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removed check for wLength as not necessary.
author daniele@danieleb.com
date Wed, 15 Feb 2012 11:02:45 +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);