diff options
Diffstat (limited to 'sourcecodes/bnt-master/KPMtools/marg_table.m')
| -rw-r--r-- | sourcecodes/bnt-master/KPMtools/marg_table.m | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/sourcecodes/bnt-master/KPMtools/marg_table.m b/sourcecodes/bnt-master/KPMtools/marg_table.m new file mode 100644 index 00000000..0f1e5be5 --- /dev/null +++ b/sourcecodes/bnt-master/KPMtools/marg_table.m @@ -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 |
