How to stack arrays into a matrix

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France Poirier
France Poirier 2020 年 12 月 31 日
回答済み: Walter Roberson 2020 年 12 月 31 日
Hi,
This sounds like it should be really easy, but I can't figure out a way to do it without a loop. I want to avoid loops as I am working with large matrices and speed is important.
I have a 1xm array which I'd like to stack into a nxm matrix. Is there a quick and easy way to do it without a loop?
Thank you!
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France Poirier
France Poirier 2020 年 12 月 31 日
Thank you very much! Does exactly what I need
France Poirier
France Poirier 2020 年 12 月 31 日
If you paste it inthe "Answer this question" section I could accept it...

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Walter Roberson
Walter Roberson 2020 年 12 月 31 日
You have a (single) 1xm array? If you need it to be nxm then
repeated_matrix = repmat(TheArray, n, 1)
Side note: in current releases, repmat() is a built-in. In older versions, repmat() was a .m file that in this particular case would have come down to
repeated_matrix = TheArray(ones(n,1), :)

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