annotate _FullBNT/KPMtools/marg_table.m @ 9:4ea6619cb3f5 tip

removed log files
author matthiasm
date Fri, 11 Apr 2014 15:55:11 +0100
parents b5b38998ef3b
children
rev   line source
matthiasm@8 1 function smallT = marg_table(bigT, bigdom, bigsz, onto, maximize)
matthiasm@8 2 % MARG_TABLE Marginalize a table
matthiasm@8 3 % smallT = marg_table(bigT, bigdom, bigsz, onto, maximize)
matthiasm@8 4
matthiasm@8 5 if nargin < 5, maximize = 0; end
matthiasm@8 6
matthiasm@8 7
matthiasm@8 8 smallT = myreshape(bigT, bigsz); % make sure it is a multi-dim array
matthiasm@8 9 sum_over = mysetdiff(bigdom, onto);
matthiasm@8 10 ndx = find_equiv_posns(sum_over, bigdom);
matthiasm@8 11 if maximize
matthiasm@8 12 for i=1:length(ndx)
matthiasm@8 13 smallT = max(smallT, [], ndx(i));
matthiasm@8 14 end
matthiasm@8 15 else
matthiasm@8 16 for i=1:length(ndx)
matthiasm@8 17 smallT = sum(smallT, ndx(i));
matthiasm@8 18 end
matthiasm@8 19 end
matthiasm@8 20
matthiasm@8 21
matthiasm@8 22 ns = zeros(1, max(bigdom));
matthiasm@8 23 %ns(bigdom) = mysize(bigT); % ignores trailing dimensions of size 1
matthiasm@8 24 ns(bigdom) = bigsz;
matthiasm@8 25
matthiasm@8 26 smallT = squeeze(smallT); % remove all dimensions of size 1
matthiasm@8 27 smallT = myreshape(smallT, ns(onto)); % put back relevant dims of size 1