How to include NaN elements in an array based on a condition?

Question

Annapurna Mandalika 2023-3-30

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1937899-how-to-include-nan-elements-in-an-array-based-on-a-condition

编辑： Davide Masiello 2023-3-30

Can someone help me out in writing a code to insert NaN eleemnts in an array if the element is not a consecutive multiple of 2? For example if a = [2 4 6 12 14 18]; Im expecting to be turned out as a = [2 4 6 NaN NaN 12 14 NaN 18]; Thank you

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Answer 1

Davide Masiello 2023-3-30

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1937899-how-to-include-nan-elements-in-an-array-based-on-a-condition#answer_1204659

编辑：Davide Masiello 2023-3-30

在 MATLAB Online 中打开

a = [2 4 6 12 14 18];
A = a(1):2:a(end);
new_a = zeros(size(A));
idx = any(a'== A,1);
new_a(idx) = a;
new_a(~idx) = nan;
new_a
new_a = 1×9
     2     4     6   NaN   NaN    12    14   NaN    18