How to create a specific Matrix

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Sara Trova
Sara Trova 2020-3-5
评论： Sara Trova 2020-3-5
Hi !
Can anyone help me in builting this specific matrix? I do not know if the "randi" function is the exact one.
Thank you in advance for your help!

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回答（2 个）

KSSV
KSSV 2020-3-5
c = [1 1 2 2 3 3]' ;
iwant = repmat(l',1,4) ;
Bhaskar R
Bhaskar R 2020-3-5
M = repelem([1:3]', 2, 4)

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