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

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JL
JL on 9 Sep 2019
Commented: JL on 9 Sep 2019
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];

More Answers (1)

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

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