问Matlab:用排除自身的行的最小值替换矩阵中的元素

EN

% input matrix
In = [1 2 3; 4 5 6; 7 8 9];
% compute minimum for each row
[val,mincols] = min(In,[],2);
% generate matrix made of minimum value of each row
Out = repmat(val,[1 size(In,2)]);
% find indexes of minimum values
minrows = 1:size(In,1);
minidxs = sub2ind(size(In),minrows,mincols');
% replace minimum values with infs
In(minidxs) = inf;
% find next minimum values
val = min(In,[],2);
% set original minimum elements to next minimum values
Out(minidxs) = val

In = [1 2 3; 4 5 6; 7 8 9];  % Sample data
C = size(In, 2);             % Get the number of columns
out = movmin(In(:, [2:C 1:(C-1)]), [0 C-2], 2, 'Endpoints', 'discard')

out =

     2     1     1
     5     4     4
     8     7     7