Chunk #199 — 3 Inverse solutions — 3.1 Non parametric optimization methods — 3.1.4 Shrinking methods and multiresolution methods — Shrinking LORETA-FOCUSS
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2. The weighting matrix W is constructed using (10), its initial value being given by W0=diag(D^LOR)=diag(D^0(1),D^0(2),...,D^0(3p)).