How to create a circulant matrix column wise?

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ANJANA K P
ANJANA K P 2020-11-3
编辑： KSSV 2020-11-3
I want to create M x L circulant matrix column wise,where M=16 and L=20.

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Ameer Hamza
Ameer Hamza 2020-11-3

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KSSV
KSSV 2020-11-3
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ANJANA K P
ANJANA K P 2020-11-3
Thank you for the response.But I am again getting a square matrix .I need the result as M x L. ie,16*20 matrix as the answer.
Thanks in Advcance.
KSSV
KSSV 2020-11-3
编辑：KSSV 2020-11-3
Read about Circshift.
m = 16 ; n = 20 ;
r = rand(m,1) ;
iwant = zeros(m,n) ;
iwant(:,1) = r ;
for i = 2:n
iwant(:,i) = circshift(iwant(:,i-1),1) ;
end

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Bruno Luong
Bruno Luong 2020-11-3
col = rand(16,1) % your 1-column vector
A = toeplitz(col,col(mod((1:20)-1,end)+1))

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