HOW CAN I SORTED MY MATRIX DESCEND

I HAVE A MATRIX M=[ 1 2 3 4 5 ;1 20 54 6 40] I WANT TO SORT MY MATRIX WITHIN THE SECOND COLON  WITH ASCENDING WAY TO OBTEIND THIS RESULT :
M=[3 5 2 4 1;54 40 20 6 1]
HOW CAN I DO

Answer 1

[Andrei Bobrov]

M=[ 1 2 3 4 5 ;1 20 54 6 40];

[~,ii] = sort(M(2,:),'descend');
out = M(:,ii);

or

out = sortrows(M',-2)';

[ali hadjer]

thank you i use out = sortrows(M',-2)'; its good :)