how to select a whole row in a matrix

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Luca Tognetti 2022-12-6

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https://ww2.mathworks.cn/matlabcentral/answers/1872282-how-to-select-a-whole-row-in-a-matrix

评论： Jan 2022-12-6

hi, I have two matrices with 20 rows and 4 columns and I want to compare them using ismember. my problem is that i want to consider every row as a single input as if my matrices are 20x1 vectors.

how can i do that?

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采纳的回答

Jan 2022-12-6

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https://ww2.mathworks.cn/matlabcentral/answers/1872282-how-to-select-a-whole-row-in-a-matrix#answer_1121382

编辑：Jan 2022-12-6

在 MATLAB Online 中打开

ismember(A, B, 'rows')
% Or maybe
ismember(A.', B.', 'rows')

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Luca Tognetti 2022-12-6

i have the same problem with isequal... can you help me?

i want to evaluate if one row is equal to the following one, in case i would like an output (like 1 or 0)

Jan 2022-12-6

在 MATLAB Online 中打开

nextEq = ~any(diff(A, 1, 1), 2)

diff() subtracts elements of an array along the dimension specified as 3rd input argument. any(X, 2) checks if any element along the 2nd dimension differs from zero.

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