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repeat an element in a vector

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Sehoon Chang
Sehoon Chang on 27 Mar 2020
Edited: Birdman on 27 Mar 2020
Hi all,
I have one vector and i wish to repeat the first element of the vector once at the very beginning.
For example:
n = [1 2 3 4 5 6 7 8 9]
to
n = [1 1 2 3 4 5 6 7 8 9]
Thank you all.
  1 Comment
Sriram Tadavarty
Sriram Tadavarty on 27 Mar 2020
how about using
n = [n(1) n];

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Accepted Answer

Birdman
Birdman on 27 Mar 2020
Edited: Birdman on 27 Mar 2020
[n(1) n]
or
[repmat(n(1),1) n]

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