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Sorting multi Dimension matrix

Asked by M@lik Ali on 5 Feb 2013

Hi all i have a matrix fset like

fset(:,:,1) =

Columns 1 through 7
    0.0417    0.0104    0.1042    0.1771    0.1771    0.1042    0.4271
    0.1771    0.2188    0.0313    0.2604    0.0104    0.0625    0.3021
         0    0.0833    0.0208    0.0417    0.0313    0.0833    0.0729
    0.0313    0.0313    0.0208    0.0313    0.0833    0.0104    0.0521
    0.1667    0.0312    0.0625    0.1042    0.3229    0.1146    0.0729
Columns 8 through 14
    0.1979    0.0313    0.0833    0.0625    0.0208    0.1042    0.0104
    0.3021    0.0521    0.0208    0.0729    0.0104    0.1875    0.0521
    0.0833    0.0625    0.1354    0.0104    0.0521         0    0.0417
    0.0521    0.1250    0.1042    0.0208    0.0833    0.1771    0.0625
    0.1146    0.3125    0.1875    0.0833    0.1667    0.2292    0.0833
Columns 15 through 16
    0.0417    0.0104
    0.0625    0.1563
    0.1354    0.0521
    0.0313    0.0729
    0.2917    0.0313

fset(:,:,2) =

Columns 1 through 12
     0     0     0     0     0     0     0     0     0     0     0     0
     0     0     0     0     0     0     0     0     0     0     0     0
     0     0     0     0     0     0     0     0     0     0     0     0
     0     0     0     0     0     0     0     0     0     0     0     0
     0     0     0     0     0     0     0     0     0     0     0     0
Columns 13 through 16
     0     0     0     0
     0     0     0     0
     0     0     0     0
     0     0     0     0
     0     0     0     0

i want to sort this matrix so that the lowest should be above

how i can do it please help me

1 Comment

Jan Simon on 5 Feb 2013

Do you mean the "lowest element" and what exactly is "above" in a 3D array?

M@lik Ali

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1 Answer

Answer by Conrad on 5 Feb 2013
Accepted answer

Hi, you need to sort along the third dimension:

    % Create dummy data.
    fset(:,:,1) = rand(5,16); fset(:,:,2) = zeros(5,16);
    sorted_fset = sort(fset,3);

Conrad

1 Comment

M@lik Ali on 5 Feb 2013

Thanks I will try this.

Conrad

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