random matrix 6*3 and i want set row according highest total of row set as first than lower

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Pratik Anandpara 2016-12-15

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https://ww2.mathworks.cn/matlabcentral/answers/316995-random-matrix-6-3-and-i-want-set-row-according-highest-total-of-row-set-as-first-than-lower

评论： Pratik Anandpara 2016-12-15

          2.00          1.00          6.00 =9 
             0          8.00          2.00 =10
          1.00          2.00          1.00 =4
          5.00             0          8.00=13
          6.00             0          5.00=11
          3.00             0          6.00=9
now rearrange and set matrix is
          5.00          0.00          8.00 
          6.00          0.00          5.00 
          0.00          8.00          2.00
          2.00          1.00          6.00
          3.00             0          6.00
          1.00          2.00          1.00
this row order is not fix each time 6*3 random matrix but raw order high is set as first

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Pratik Anandpara 2016-12-15

yes...sorry spell mistake it's row

KSSV 2016-12-15

It is already answered......

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Answer 1

KSSV 2016-12-15

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A = [2.00          1.00          6.00
             0          8.00          2.00 
          1.00          2.00          1.00 
          5.00             0          8.00
          6.00             0          5.00
          3.00             0          6.00];
      thesum = sum(A,2) ;
[val,idx] = sort(thesum,'descend')      ;
B = A(idx,:)

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Pratik Anandpara 2016-12-15

编辑：Pratik Anandpara 2016-12-15

https://in.mathworks.com/matlabcentral/answers/317002-i-generate-three-digit-from-crossover-with-another-digit-but-now-i-valid-only-that-child1-child2-chi

help for this

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Answer 2

Jos (10584) 2016-12-15

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https://ww2.mathworks.cn/matlabcentral/answers/316995-random-matrix-6-3-and-i-want-set-row-according-highest-total-of-row-set-as-first-than-lower#answer_247301

在 MATLAB Online 中打开

Let A be your matrix of values:

rowsumA = sum(A,2) % sum over rows
[~,ix] = sort(rowsumA, 'descend') % sort these sums in descending order
B = A(ix,:) sort the matrix A accordingly

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Pratik Anandpara 2016-12-15

https://in.mathworks.com/matlabcentral/answers/317002-i-generate-three-digit-from-crossover-with-another-digit-but-now-i-valid-only-that-child1-child2-chi

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