deleting number
显示 更早的评论
i have values such as A=[12 20 1 5 69 70 21 50 46 52 87 83 11 21]
B=[ 70 50 12 83]
now i want to delete B values from A ,so i will have output as
C=[20 1 5 69 21 46 52 87 11 21 ]
采纳的回答
Andrei Bobrov
2012-2-28
[C1,ic] = setdiff(A,B)
[i1,i1] = sort(ic)
C = C1(i1)
OR
C = A(~ismember(A,B))
更多回答（1 个）
Wayne King
2012-2-28
Hi, You can use intersect to get the indices of A that intersect with elements of B and then delete those.
[C,IA,IB] = intersect(A,B);
A(IA) = [];
3 个评论
kash
2012-2-28
Oleg Komarov
2012-2-28
Sounds like a homework.
Jan
2012-2-28
No, kask, it is impossible to do this "without built-in command", because all you can write in Matlab requires built-in commands. If your teacher told you to do this, ask him for thinking twice.
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