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

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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];

Akzeptierte Antwort

madhan ravi
madhan ravi am 9 Sep. 2019
B = A(~A(:,1),:)

Weitere Antworten (1)

Fabio Freschi
Fabio Freschi am 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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