How can i sort all the rows of a matrix but one along a row

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Kalpha.mc
Kalpha.mc 2020-9-20
回答： David Hill 2020-9-20
How would i sort a 15 x 5 matrix descending based on the 5th column without changing the first column.

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David Hill
David Hill 2020-9-20
b=[a(:,1),sortrows(a(:,2:end),4,'descend')];

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