How do you sum a vector and concatenate the outputs into the original array or vector.

Question

Patrick Bradford 2017-3-14

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/329740-how-do-you-sum-a-vector-and-concatenate-the-outputs-into-the-original-array-or-vector

编辑： Stephen23 2017-3-14

function[ArrayZ]=SumArray(ArrayG)
    A=[1 4 3]
    B=[6 8 9]
      ArrayZ=[A;B]
     S=sum(ArrayZ,1) %%outputs the sum of the colm
      S=sum(ArrayZ,2)%%outputs the sum of the row
       %%I want to concantinate? to have ArrayZ=[1 4 2 8;

6 8 9 23;

7 12 12 31]

       %%How do I merge the array with the sum outputs? 
  endfunction

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Jan 2017-3-14

1+4+2 = 7, not 8

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Answer 1

Michelangelo Ricciulli 2017-3-14

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I think this is the solution:

    S=sum(ArrayZ,1) %%outputs the sum of the colm
    ArrayZ=[ArrayZ; S]; %%append the sums
    S=sum(ArrayZ,2)%%outputs the sum of the row (included appended new values)
    ArrayZ=[ArrayZ, S];

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Answer 2

KSSV 2017-3-14

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https://ww2.mathworks.cn/matlabcentral/answers/329740-how-do-you-sum-a-vector-and-concatenate-the-outputs-into-the-original-array-or-vector#answer_258611

在 MATLAB Online 中打开

function[ArrayZ]=SumArray(ArrayG)
A=[1 4 3] ; B=[6 8 9] ;
AB=[A;B] ;
S1=sum(AB,1) ;%%outputs the sum of the colm
S2=sum(AB,2) ;%%outputs the sum of the row
ArrayZ = AB ;
ArrayZ(:,end+1) = S2 ;
ArrayZ(end+1,:) = [S1 sum(S2)] ;
end