Find identical rows in matrices

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Ahmed Abdulla
Ahmed Abdulla on 8 Jun 2022
Edited: KSSV on 8 Jun 2022
I have matrix A (1000x3) and matrix B (1200x3), is there an easy way to know what rows of matrix A already exist in Matrix B. Any help is appreciated

Accepted Answer

KSSV
KSSV on 8 Jun 2022
Edited: KSSV on 8 Jun 2022
REad about ismember
% Example
A = [1 1 1; 2 3 4; 5 5 5; 8 9 10];
B = [1 1 1;5 5 5];
[c,ia] = ismember(A,B,'rows') ;
A(c,:)
ans = 2×3
1 1 1 5 5 5

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