Delete/remove entire rows and columns containing an element that satisfies a condition (e.g. when the element is an imaginary number)

2 次查看（过去 30 天）
Saeid
Saeid 2021-7-16
回答： Walter Roberson 2021-7-16
In an array containing elements that are imaginary numbers, how can I remove the entire row(s) and column(s) containing any of these numbers?

请先登录，再回答此问题。

采纳的回答

Jonas
Jonas 2021-7-16
编辑：Jonas 2021-7-16
where=yourMatrix==yourCondition;
yourMatrix(any(where,2),:)=[];
yourMatrix(:,any(where,1))=[];
or
[row,col]=find(where);
yourMatrix(row,:)=[];
yourMatrix(:,col)=[];
if your condition being a complex number you can use where=~isreal(yourMatrix)

更多回答（1 个）

Walter Roberson
Walter Roberson 2021-7-16
valgood = imag(YourMatrix)==0;
rowmask = all(valgood,2);
colmask = all(valgood,1);
newMatrix = YourMatrix(rowmask, colmask);

类别

在 Help Center 和 File Exchange 中查找有关 Operators and Elementary Operations 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by