how remove duplicate rows ?

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0 个投票

I dont knew if we can have a script for that if we have

A=[ 1,2,3;
   42,0,1;
   14,2,4;
    2,3,5;
    1,0,0]
B=[42,0,1;
    1,0,0]

i want C

C=[ 1,2,3;
   14,2,4;
    2,3,5]

thanks

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the cyclist 2014-5-21

编辑：the cyclist 2014-5-21

Note that the difference between my answer and Andrei's is how to handle the case where there are rows in B that are not in A. My solution will include those rows in C, and Andrei's will not.

Azzi's is different still, in that it handles replicated rows from A differently. My and Andrei's solution will keep only the unique rows, while Azzi's will keep duplicate rows from A.

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