Create an array containing indeces and value

Question

Paola 2022-4-20

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https://ww2.mathworks.cn/matlabcentral/answers/1700340-create-an-array-containing-indeces-and-value

回答： Matt J 2022-4-21

Hi everyone,

I have a problem that I don't know how to solve. How Can I create an array C from two matrix A (50X100)and B (50X100) where the matrix B contains the x coordinates of the value contained in Matrix A (meaning that to the value in the first row A correspond the coordinates in the first row B)?

Thank you so much

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Matt J 2022-4-21

They already are saved in the workspace as A and B.

Paola 2022-4-21

I need to the cross correlate the "combined" vectors with another vector. I don't know how to do it if they are separated.

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Answer 1

Matt J 2022-4-20

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https://ww2.mathworks.cn/matlabcentral/answers/1700340-create-an-array-containing-indeces-and-value#answer_946280

编辑：Matt J 2022-4-20

在 MATLAB Online 中打开

Would this be a simplified example fo what you mean?

[A,B]=ndgrid(1:5)
A = 5×5
   1     1     1     1
   2     2     2     2
   3     3     3     3
   4     4     4     4
   5     5     5     5
B = 5×5
   2     3     4     5
   2     3     4     5
   2     3     4     5
   2     3     4     5
   2     3     4     5
C=A.^2+B.^2
C = 5×5
   5    10    17    26
   8    13    20    29
  13    18    25    34
  20    25    32    41
  29    34    41    50

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Paola 2022-4-21

HI Matt,

thank you for your answer. What I am trying to do is scaling a curve. I have a matrix A in which each row contains the values of a curve and B is another matrix in which each row contains the x-value of the curves.

I want to combine the two.

Thanks

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