Daniel@0: function W = initializeDiag(X)
Daniel@0: 
Daniel@0:     [d,n,m] = size(X);
Daniel@0: 
Daniel@0: %     W = ones(d, 1);
Daniel@0:     W = 1./std(X,1,2);
Daniel@0:     W(isinf(W)) = 1;
Daniel@0: end