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

first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
parents
children
rev   line source
wolffd@0 1 function index = mk_multi_index(n, dims, vals)
wolffd@0 2 % MK_MULTI_INDEX Compute the indices of the submatrix where dims(i)=vals(i).
wolffd@0 3 % index = mk_multi_index(n, dims, vals)
wolffd@0 4 %
wolffd@0 5 % Example:
wolffd@0 6 % index = mk_multi_index(3, [1 3], [3 2])
wolffd@0 7 % gives index = {3, ':', 2}, which will select out dim 1 = 3 and dim 3 = 2
wolffd@0 8 % So if A(:,:,1)=[1 2;3 4; 5 6]; A(:,:,2)=[7 8; 9 10; 11 12]
wolffd@0 9 % then A(index{:}) = [11 12]:
wolffd@0 10
wolffd@0 11 if n==0
wolffd@0 12 index = { 1 };
wolffd@0 13 return;
wolffd@0 14 end
wolffd@0 15
wolffd@0 16 index = cell(1,n);
wolffd@0 17 for i=1:n
wolffd@0 18 index{i} = ':';
wolffd@0 19 end
wolffd@0 20 for i=1:length(dims)
wolffd@0 21 index{dims(i)} = vals(i);
wolffd@0 22 end
wolffd@0 23