MATLAB: Arrange matrix in a ascending order

Question

Hi Guys,

If I have a matrix say of the following form

 X =   42.5123   42.3975   42.2375   42.1167   42.1354   41.8895
       67.7294   67.6697   67.6345   67.5530   67.5784   67.4758

I want to arrange it in such a way that the if the last element in the first row is the smallest element (like the eg above), I want to reverse the order completely.

 X=   41.8895   42.1354   42.1167    42.2375    42.3975    42.5123
      67.4758   67.5784   67.5530    67.6345    67.6697    67.7294

You can see that the order is just reversed. Can anyone tell me how I can accomplish this in MATLAB.

Thanks, Nancy

Answer 1

If you know that you are reversing from side to side, then just

newX = fliplr(X);

Otherwise,

[sortX, xidx] = sort(X(1,:));
newX = X(:,xidx);