diff toolboxes/FullBNT-1.0.7/bnt/potentials/Tables/marg_table.m @ 0:e9a9cd732c1e tip

first hg version after svn

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolboxes/FullBNT-1.0.7/bnt/potentials/Tables/marg_table.m	Tue Feb 10 15:05:51 2015 +0000
@@ -0,0 +1,27 @@
+function smallT = marg_table(bigT, bigdom, bigsz, onto, maximize)
+% MARG_TABLE Marginalize a table
+% smallT = marg_table(bigT, bigdom, bigsz, onto, maximize)
+
+if nargin < 5, maximize = 0; end
+
+
+smallT = myreshape(bigT, bigsz); % make sure it is a multi-dim array
+sum_over = mysetdiff(bigdom, onto);
+ndx = find_equiv_posns(sum_over, bigdom);
+if maximize
+  for i=1:length(ndx)
+    smallT = max(smallT, [], ndx(i));
+  end
+else
+  for i=1:length(ndx)
+    smallT = sum(smallT, ndx(i));
+  end
+end
+
+
+ns = zeros(1, max(bigdom));
+%ns(bigdom) = mysize(bigT); % ignores trailing dimensions of size 1
+ns(bigdom) = bigsz;
+
+smallT = squeeze(smallT); % remove all dimensions of size 1
+smallT = myreshape(smallT, ns(onto)); % put back relevant dims of size 1