remove specific rows by referencing on the first digit of each row.

1 次查看（过去 30 天）
JL
JL 2019-9-9
评论： JL 2019-9-9
Hi everyone, I want to reduce remove rows in matrix A, by referencing on the first number in each row to get B. In this case, if the first number is 1, remove the row
A = [1 1 1 0
0 1 1 1
0 1 1 0
1 0 1 0];
Results B =
B =[0 1 1 1
0 1 1 0];

请先登录，再回答此问题。

采纳的回答

madhan ravi
madhan ravi 2019-9-9
B = A(~A(:,1),:)

更多回答（1 个）

Fabio Freschi
Fabio Freschi 2019-9-9
index = 1;
% A(:,1) == index finds the rows with specific value (logical indexing)
B = A(A(:,1) == index,:)

类别

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