[Solved] Find and replace using Matlab [closed]

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If mat1 and mat2 are the first and second matrices you described, this should do the join you need with indexing functions.

[~, I] = ismember(mat2(:, 2), mat1(:, 1));
Output = [mat2(:, 1) mat1(I, 2:end)]

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solved Find and replace using Matlab [closed]