Find first row with certain value in x2 array
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I have an 300x2 array in which I need to find a certain numbert in colum 1, e.g. 10. Once the number is found I need to extract the corresponding value in colum 2.
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Chunru
2021-6-8
idx = A(:, 1) == 10; % find the index that 1st column = 10
b = A(idx, 2); % extract the corresponding data in 2nd column
Or in one line
b = A(A(:,1)==10, 2);
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