reference elements in a matrix based on values in a vector

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Christopher 2014-2-23

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编辑： Christopher 2014-2-23

采纳的回答： Azzi Abdelmalek

I have the 1x9 vector [5 3 2 6 7 26 4 33 3]

I want to obtain the matrix [5 3 2; 6 7 26; 4 33 3] using completely vectorized code. How can this be done?

As a start, I have vectorized code to build the 3x3 matrix [ 1 2 3; 4 5 6; 7 8 9], so that the values are the vector columns, but I don't know how to do the vectorized referencing.

Thanks

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Azzi Abdelmalek 2014-2-23

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编辑：Azzi Abdelmalek 2014-2-23

在 MATLAB Online 中打开

A= [5 3 2 6 7 26 4 33 3]
out= reshape(A,3,[])'

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Azzi Abdelmalek 2014-2-23

How?

Christopher 2014-2-23

编辑：Christopher 2014-2-23

There are two 7's because there are two 5's. The 5th element in the vector is =7. The numbers in the matrix should refer to the column number in the vector. You see?

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