Created
December 12, 2011 22:12
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Expands a list of lists as a tree diagram
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def expand_tree_diagram(a_list, a_branch = []): | |
if a_list == []: | |
return [a_branch] | |
else: | |
result = [] | |
for a_leaf in a_list[0]: | |
result += expand_tree_diagram(a_list[1:], a_branch + [a_leaf]) | |
return result | |
if __name__ == '__main__': | |
t = expand_tree_diagram([[1,2,3,4],["a", "b"],["i", "ii", "iii", "iv"], ["A", "B", "C"]]) | |
assert t == [[1, 'a', 'i', 'A'], [1, 'a', 'i', 'B'], [1, 'a', 'i', 'C'], [1, 'a', 'ii', 'A'], [1, 'a', 'ii', 'B'], [1, 'a', 'ii', 'C'], [1, 'a', 'iii', 'A'], [1, 'a', 'iii', 'B'], [1, 'a', 'iii', 'C'], [1, 'a', 'iv', 'A'], [1, 'a', 'iv', 'B'], [1, 'a', 'iv', 'C'], [1, 'b', 'i', 'A'], [1, 'b', 'i', 'B'], [1, 'b', 'i', 'C'], [1, 'b', 'ii', 'A'], [1, 'b', 'ii', 'B'], [1, 'b', 'ii', 'C'], [1, 'b', 'iii', 'A'], [1, 'b', 'iii', 'B'], [1, 'b', 'iii', 'C'], [1, 'b', 'iv', 'A'], [1, 'b', 'iv', 'B'], [1, 'b', 'iv', 'C'], [2, 'a', 'i', 'A'], [2, 'a', 'i', 'B'], [2, 'a', 'i', 'C'], [2, 'a', 'ii', 'A'], [2, 'a', 'ii', 'B'], [2, 'a', 'ii', 'C'], [2, 'a', 'iii', 'A'], [2, 'a', 'iii', 'B'], [2, 'a', 'iii', 'C'], [2, 'a', 'iv', 'A'], [2, 'a', 'iv', 'B'], [2, 'a', 'iv', 'C'], [2, 'b', 'i', 'A'], [2, 'b', 'i', 'B'], [2, 'b', 'i', 'C'], [2, 'b', 'ii', 'A'], [2, 'b', 'ii', 'B'], [2, 'b', 'ii', 'C'], [2, 'b', 'iii', 'A'], [2, 'b', 'iii', 'B'], [2, 'b', 'iii', 'C'], [2, 'b', 'iv', 'A'], [2, 'b', 'iv', 'B'], [2, 'b', 'iv', 'C'], [3, 'a', 'i', 'A'], [3, 'a', 'i', 'B'], [3, 'a', 'i', 'C'], [3, 'a', 'ii', 'A'], [3, 'a', 'ii', 'B'], [3, 'a', 'ii', 'C'], [3, 'a', 'iii', 'A'], [3, 'a', 'iii', 'B'], [3, 'a', 'iii', 'C'], [3, 'a', 'iv', 'A'], [3, 'a', 'iv', 'B'], [3, 'a', 'iv', 'C'], [3, 'b', 'i', 'A'], [3, 'b', 'i', 'B'], [3, 'b', 'i', 'C'], [3, 'b', 'ii', 'A'], [3, 'b', 'ii', 'B'], [3, 'b', 'ii', 'C'], [3, 'b', 'iii', 'A'], [3, 'b', 'iii', 'B'], [3, 'b', 'iii', 'C'], [3, 'b', 'iv', 'A'], [3, 'b', 'iv', 'B'], [3, 'b', 'iv', 'C'], [4, 'a', 'i', 'A'], [4, 'a', 'i', 'B'], [4, 'a', 'i', 'C'], [4, 'a', 'ii', 'A'], [4, 'a', 'ii', 'B'], [4, 'a', 'ii', 'C'], [4, 'a', 'iii', 'A'], [4, 'a', 'iii', 'B'], [4, 'a', 'iii', 'C'], [4, 'a', 'iv', 'A'], [4, 'a', 'iv', 'B'], [4, 'a', 'iv', 'C'], [4, 'b', 'i', 'A'], [4, 'b', 'i', 'B'], [4, 'b', 'i', 'C'], [4, 'b', 'ii', 'A'], [4, 'b', 'ii', 'B'], [4, 'b', 'ii', 'C'], [4, 'b', 'iii', 'A'], [4, 'b', 'iii', 'B'], [4, 'b', 'iii', 'C'], [4, 'b', 'iv', 'A'], [4, 'b', 'iv', 'B'], [4, 'b', 'iv', 'C']] |
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