Removing values form the Matrix

2013 3 13
2 个回答
回答已采纳
13 次查看（30 天）

0 个投票

Hi, All
i have two matrix matrix A has size 2 62 matrix B has size 10 62
actually the matrix B contains also matrix A
i want to remove the matrix A from matrix B.
How i can do this

请先登录，再回答此问题。

 采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2013-3-13
编辑：Azzi Abdelmalek 2013-3-13

0 个投票

for k=1:size(B,1)
if isequal(B(k:k+1,:),A)
idx=k
break
end
end
B(idx:idx+1,:)=[]

3 个评论
显示 1更早的评论 隐藏 1更早的评论

M@lik Ali
M@lik Ali 2013-3-13
Thanks for the response,
but i think there must be a simple solution as
for the vector we have
B(ismember(B,A)) = [];
it works for the vector, i think there should be a solution for the matrix
Azzi Abdelmalek
Azzi Abdelmalek 2013-3-13
B(find(all(ismember(B,A),2)),:)=[]
M@lik Ali
M@lik Ali 2013-3-13
thanks second one working gud

请先登录，再进行评论。

更多回答（1 个）

Andrei Bobrov
Andrei Bobrov 2013-3-13
编辑：Andrei Bobrov 2013-3-13

1 个投票

in your case:
B = randi(100,10,62);
A = B(4:5,:);
B(end,:) = A(1,:); % your data
[a,ii] = ismember(B,A,'rows');
iii = 1:size(A,1);
i1 = strfind(ii(:)',iii) + iii - 1;
B(i1,:) = [];

类别

在 帮助中心 和 File Exchange 中查找有关 Multidimensional Arrays 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by