ower bounds to get a nonnegative factorization.</p><h2 id="13">Create an example problem.</h2><p>Create an example 50 x 40 x 30 tensor with rank 5 and add 10% noise. We select nonnegative factor matrices and lambdas. The create_problem doesn't really know how to add noise without going negative, so we <i>hack</i> it to make the observed tensor be nonzero.</p><pre class="codeinput">R = 5;
info = create_problem(<span class="string">'Size'</span>, [50 40 30], <span class="string">'Num_Factors'</span>, R, <span