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      Published with MATLAB&reg; 7.10<br></p></div><!--
##### SOURCE BEGIN #####
%% Demo of what constitutes plausible sparsity prior for linear regression
% MODEL: y = Ax + noise; s.t.  card(x) = k
%
% =============================================================================
%
% MODEL:     y = Ax + noise;    s.t.  card(x) = k
%
% QUESTION:  what constitutes a "plausible" sparsity-inducing prior for
%            any given problem (here the sparse linear model above)?
%            For e