pect ratio of design matrix A by changing m (# of obs) and note how the # of significant posterior modes changes with m</p><p>o) A, x, y and noise can be sampled as Uniform, Gaussian or even Binary see the commented-out portions in the code below, try changing these.</p><p>o) you can explore the prior for all k (i.e., all 2^n sparsities) thus not commiting to any one k as being the "right" sparsity. If you assume each k to be equally likely a priori, then just pool over MC runs for each k=1:n-1. This can be