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Populate Array with duplicate variables

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Uchenna
Uchenna 2013-9-18
Hi,
I am trying to duplicate the elements within a Matlab array according to the position of elements of the array.
For instance,
x = [1,2,3,4,5,6,4,2,7,5,3] should become x1 = [1,1,2,2,3,3,4,4,5,5,6,6,4,4,2,2,7,7,5,5,3,3]
Thanks

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采纳的回答

Azzi Abdelmalek
Azzi Abdelmalek 2013-9-18
编辑：Azzi Abdelmalek 2013-9-18
x = [1,2,3,4,5,6,4,2,7,5,3]
y=[x;x]
y=y(:)'
%Or
n=2
x=repmat(x,n,1);
y=y(:)'

更多回答（1 个）

Jos (10584)
Jos (10584) 2013-9-19
Another ML-trick:
% data
x = [1 4 3 6] ;
n = 2 ;
% engine
y = kron(x,ones(1,n))

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