how to reject whole columns based on a condition

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omar mahallawy 2019-3-14

关闭： MATLAB Answer Bot 2021-8-20

A = [5 10 18 13

-2 8 -9 10

40 47 85 -30]

condiotion : remove columns with any negative numbers

result=[10

47]

kindly note that this is in a for loop

此问题已关闭。

Akira Agata 2019-3-14

No need to use for-loop. Please try the following:

A = [5    10    18     13;
  -2     8    -9       10;
  40   47   85     -30];
idx = any(A<0);
result = A(:,~idx);

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