Swapping Blocks in a Matrix

Question

Jordan Means 2018-9-12

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/418576-swapping-blocks-in-a-matrix

评论： Stephen23 2018-9-12

Hello. I'm trying to swap the first two numbers of the first and second rows of this test matrix with the last two numbers of the second and third rows. Is there any way to swap these numbers in a matrix that's not one row and/or not on the same row?

x = [1 2 3 4 5;
     6 7 8 9 10;
     11 12 13 14 15]

The result should be:

 x = [9 10 3 4 5;
       14 15 8 1 2;
       11 12 13 6 7]

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Answer 1

Stephen23 2018-9-12

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/418576-swapping-blocks-in-a-matrix#answer_336419

编辑：Stephen23 2018-9-12

在 MATLAB Online 中打开

>> x = [1,2,3,4,5;6,7,8,9,10;11,12,13,14,15]
x =
    1    2    3    4    5
    6    7    8    9   10
   11   12   13   14   15
>> x([1,4,11,14]) = x([11,14,1,4])
x =
    9   10    3    4    5
    6    7    8    1    2
   11   12   13   14   15