www.pudn.com > l1_ls_matlab.zip > simple_example.m, change:2007-03-05,size:387b


% 
%   simple example to show the usage of l1_ls 
% 
 
% problem data 
A  = [1    0    0   0.5;...\ 
      0    1  0.2   0.3;...\ 
      0  0.1    1   0.2]; 
x0 = [1 0 1 0]';    % original signal 
y  = A*x0;          % measurements with no noise 
lambda = 0.01;      % regularization parameter 
rel_tol = 0.01;     % relative target duality gap 
 
[x,status]=l1_ls(A,y,lambda,rel_tol);