# MATLAB: How to create all possible random combinations of word pairs without having the same values (for example, house – house)

arraypairrandomwords

Hi all. I have this code:
Tile = {'house', 'core', 'word', 'ask', 'question', 'horse', 'phone', 'eyes', 'hair', 'man'};
idx = randi(10, 90, 2)
j = 1;
k = 1;
if ~isequal(j,k)
k = k + 1;
idx = randperm(10, 90, 2);
end
end
disp(j)
disp(k)
disp(Tile(idx))

``>> Tile = {'house', 'core', 'word', 'ask', 'question', 'horse', 'phone', 'eyes', 'hair', 'man'};>> X = nchoosek(1:numel(Tile),2); % sorted row order.>> Tile(X)ans =     'house'       'core'        'house'       'word'        'house'       'ask'         'house'       'question'    'house'       'horse'       'house'       'phone'       'house'       'eyes'        'house'       'hair'        'house'       'man'         'core'        'word'        'core'        'ask'         'core'        'question'    'core'        'horse'       'core'        'phone'       'core'        'eyes'        'core'        'hair'        'core'        'man'         'word'        'ask'         'word'        'question'    'word'        'horse'       'word'        'phone'       'word'        'eyes'        'word'        'hair'        'word'        'man'         'ask'         'question'    'ask'         'horse'       'ask'         'phone'       'ask'         'eyes'        'ask'         'hair'        'ask'         'man'         'question'    'horse'       'question'    'phone'       'question'    'eyes'        'question'    'hair'        'question'    'man'         'horse'       'phone'       'horse'       'eyes'        'horse'       'hair'        'horse'       'man'         'phone'       'eyes'        'phone'       'hair'        'phone'       'man'         'eyes'        'hair'        'eyes'        'man'         'hair'        'man'     >> X = X(randperm(size(X,1)),:); % random row order.>> Tile(X)ans =     'core'        'word'        'horse'       'hair'        'house'       'phone'       'eyes'        'man'         'house'       'question'    'horse'       'phone'       'question'    'horse'       'horse'       'eyes'        'horse'       'man'         'question'    'hair'        'house'       'word'        'question'    'phone'       'core'        'hair'        'phone'       'hair'        'ask'         'question'    'house'       'eyes'        'word'        'eyes'        'eyes'        'hair'        'phone'       'eyes'        'core'        'phone'       'core'        'eyes'        'question'    'eyes'        'core'        'horse'       'core'        'man'         'word'        'ask'         'word'        'man'         'house'       'core'        'ask'         'eyes'        'ask'         'man'         'ask'         'hair'        'house'       'hair'        'word'        'phone'       'house'       'horse'       'house'       'ask'         'core'        'question'    'house'       'man'         'word'        'horse'       'word'        'hair'        'word'        'question'    'question'    'man'         'ask'         'phone'       'hair'        'man'         'phone'       'man'         'core'        'ask'         'ask'         'horse'``