How to use loop to distribute values from one matrix to another matrix in a certain order?

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lauuser1 2016-2-16

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https://ww2.mathworks.cn/matlabcentral/answers/268299-how-to-use-loop-to-distribute-values-from-one-matrix-to-another-matrix-in-a-certain-order

评论： Image Analyst 2016-2-16

For example, let's say I have a 3x2 matrix called A and a 3x2 matrix called B. I want the first number in A (1st row, 1st column) to go to the first number in B (1st row, 1st column). However, I want the second number in A (1st row, 2nd column) to go to the 2nd row 1st column of B. I want the third number of A (2nd row, 1st column) to go to the 3rd row 1st column of B.

Is there a single code I can use or would I have to use multiple lines of codes? I know I can probably use loop or for loop, but how exactly?

(Visually it should look something like this)

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Answer 1

Image Analyst 2016-2-16

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https://ww2.mathworks.cn/matlabcentral/answers/268299-how-to-use-loop-to-distribute-values-from-one-matrix-to-another-matrix-in-a-certain-order#answer_209958

在 MATLAB Online 中打开

Try this:

B = reshape(A(:)', [], 2)

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lauuser1 2016-2-16

That works exactly how I want it to, however is there any way to incorporate the loop function? Would it be any different if A was a different size than B?

Image Analyst 2016-2-16

I guess you could use for loops if you want.

You can specify the number of columns for 2 as the last argument. It does not need to be the same as A but the total number of elements in B must be the same as A of course.

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