How to remove zero sum row from matrix

9 次查看（过去 30 天）
Vishal Sharma
Vishal Sharma 2017-1-24
回答： Andrei Bobrov 2017-1-24
A=[1 2 3 4 5 6;
0 0 1 1 0 1;
0 0 1 0 1 0]
Sum of second and third row if equal to zero, then in new matrix that column is to be excluded. So, the result shall be
A=[3 4 5 6;
1 1 0 1;
1 0 1 0]

请先登录，再回答此问题。

采纳的回答

the cyclist
the cyclist 2017-1-24
编辑：the cyclist 2017-1-24
colToRemove = sum(A(2:end,:))==0;
A(:,colToRemove) = [];

更多回答（2 个）

Roger Stafford
Roger Stafford 2017-1-24
A = A(:,(A(2,:)+A(3,:)~=0));
  1 个评论
Vishal Sharma
Vishal Sharma 2017-1-24
Thanks Roger Stafford,,, if there are n rows, please also suggest answer...

请先登录，再进行评论。

Andrei Bobrov
Andrei Bobrov 2017-1-24
A = A(:,sum(A(2:end,:))~=0);

类别

在 Help Center 和 File Exchange 中查找有关 Creating and Concatenating Matrices 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