Count unique vector in a sequence

2024 7 14
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Hello,
I have a sequence of 16 column vectors v_n with dimension 4x1: [ v_1 v_2 ... v_16 ]
How can I count the number of different vectors in this sequence?
Thanks

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Walter Roberson
Walter Roberson 2024-7-14

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Put them together into one 2D array, arranging them as rows (rather than as columns), and then use unique() with the 'rows' option, and count the result.

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