matlab - Finding indexes, intersection and then ranking in a matrix? -

i have matrix follows:

a = [1 0 0 0 0 0 0;      1 1 0 0 0 0 0;      1 0 1 0 0 0 0;      1 1 0 1 1 0 0;      1 1 0 1 1 0 0;      1 0 1 0 0 1 1;      1 0 1 0 0 1 1] 

of wish create following table:

x - each rows index of cols having 1 y - each cols index of rows having 1 z - intersection set   s.no      x               y               z       rank(comparing x & z) 1        1          1,2,3,4,5,6,7        1                 2        1,2           2,4,5             2                 ii 3        1,3           3,6,7             3                 ii 4       1,2,4,5         4,5             4,5                iii 5       1,2,4,5         4,5             4,5                iii 6       1,3,6,7         6,7             6,7                iii 7       1,3,6,7         6,7             6,7                iii 

of above table, x , y columns have been found of matlab code provided sir luis mendo previous question. code follows:

[ii jj] = find(a); %// find row , col indices (ii , jj respectively) rows = accumarray(ii,jj,[], @(v) {sort(v).'}); %'// group jj per ii, , sort cols = accumarray(jj,ii,[], @(v) {sort(v).'}); %'// group ii per jj, , sort rows{:} cols{:} 

now wish find intersection set i.e. z m not able find using intersection command.

further ranking done on comparing columns x , z in such manner minimum of elements in both columns, maximum of common elements should there , each time common element should emitted whole x column further comparison again minimum of elements in both sets max common elements can found.

please help.

for intersection, work a & a.':

[ii jj] = find(a & a.'); z = accumarray(ii,jj,[], @(v) {sort(v).'});