How to delete all repeat rows?
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How to delete all repeat rows?
I mean all repeat rows, like :
A=
[0 4;
2 4;
0 4;
4 8;
3 4]
How to got new_A=
[2 4;
4 8;
3 4]
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Akzeptierte Antwort
Rik
am 19 Mai 2020
Bearbeitet: Rik
am 19 Mai 2020
There is probably a more efficient way, but you can use unique() to get all first occurrences. Then you can use the second output to find all removed rows, which you can use as an input to setdiff.
A=[0 4;2 4;0 4;4 8;3 4;0 4];
[B,ind]=unique(A,'stable','rows');
ind=setdiff(1:size(A,1),ind);
B=setdiff(B,A(ind,:),'rows');
4 Kommentare
Rik
am 22 Mai 2020
Glad to be of help. If it solved your problem, please consider marking it as accepted answer. If not, feel free to comment with your remaining issues.
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