Reshape matrix to have the same value every 30 cells

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Nikolas Spiliopoulos
评论： Jos (10584) 2018-2-19
Hi All,
I have a question: I have a matrix
A=[10; 20; 30; 40; 50; 50; 60]
How can I reshape it in order to have a matrix (7x30) X 1 such that the first 30 values are A(1), the next 30 have value of A(2), and so on...
thanks
nikolas

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采纳的回答

Guillaume
Guillaume 2018-2-19
This is not a reshape it's a repmat:
repmat(A, 1, 30)
  1 个评论
Jos (10584)
Jos (10584) 2018-2-19
Just to be nitpicking :D ... the first 30 values of A, retrieved by A(1:30) will be [10 20 30 40 50 60 70 10 20 ...] because A is a column vector and Matlab stores values columnwise.

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更多回答（1 个）

Birdman
Birdman 2018-2-19
编辑：Birdman 2018-2-19
B=mat2cell(repmat(A,1,30),ones(1,7),30)
type A{1} and the result will be 30 10's.
  2 个评论
Nikolas Spiliopoulos
Nikolas Spiliopoulos 2018-2-19
Thanks for the reply however I am getting an error "Inner matrix dimensions must agree"
Guillaume
Guillaume 2018-2-19
You're on a version earlier than R2016b. You have to use bsxfun on earlier versions.
Not that it matters, since the answer has completely changed.

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