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annotate toolboxes/FullBNT-1.0.7/KPMtools/partition_matrix_vec.m @ 0:e9a9cd732c1e tip

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first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
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wolffd@0 1 function [m1, m2, K11, K12, K21, K22] = partition_matrix_vec(m, K, n1, n2, bs)
wolffd@0 2 % PARTITION_MATRIX_VEC Partition a vector and matrix into blocks.
wolffd@0 3 % [m1, m2, K11, K12, K21, K22] = partition_matrix_vec(m, K, blocks1, blocks2, bs)
wolffd@0 4 %
wolffd@0 5 % bs(i) = block size of i'th node
wolffd@0 6 %
wolffd@0 7 % Example:
wolffd@0 8 % n1 = [6 8], n2 = [5], bs = [- - - - 2 1 - 2], where - = don't care
wolffd@0 9 % m = [0.1 0.2 0.3 0.4 0.5], K = some 5*5 matrix,
wolffd@0 10 % So E[X5] = [0.1 0.2], E[X6] = [0.3], E[X8] = [0.4 0.5]
wolffd@0 11 % m1 = [0.3 0.4 0.5], m2 = [0.1 0.2];
wolffd@0 12
wolffd@0 13 dom = myunion(n1, n2);
wolffd@0 14 n1i = block(find_equiv_posns(n1, dom), bs(dom));
wolffd@0 15 n2i = block(find_equiv_posns(n2, dom), bs(dom));
wolffd@0 16 m1 = m(n1i);
wolffd@0 17 m2 = m(n2i);
wolffd@0 18 K11 = K(n1i, n1i);
wolffd@0 19 K12 = K(n1i, n2i);
wolffd@0 20 K21 = K(n2i, n1i);
wolffd@0 21 K22 = K(n2i, n2i);