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[0 0 1 1 2 2 3 3 4 4 ... n n]

Is there a way to achieve a vector like the one below without using loops?

[0 0 1 1 2 2 3 3 4 4 ... n n]
0
uwn (103)
6/12/2013 7:51:09 AM
comp.soft-sys.matlab 211264 articles. 25 followers. lunamoonmoon (257) is leader. Post Follow

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"Ulrik Nash" <uwn@sam.sdu.dk> wrote in message <kp999d$a8e$1@newscl01ah.mathworks.com>...
> Is there a way to achieve a vector like the one below without using loops?
> 
> [0 0 1 1 2 2 3 3 4 4 ... n n]

You could try this:
floor(0:1/rep:n+1-1/rep)

where rep is the number of repetitions (2 in your case)
0
Bart5455 (1)
6/12/2013 8:18:13 AM
Hi,
a cool way to do that is using the kronecker product
kron(0:n,[1 1]);
0
6/12/2013 8:49:12 AM
"Ulrik Nash" <uwn@sam.sdu.dk> wrote in message <kp999d$a8e$1@newscl01ah.mathworks.com>...
> Is there a way to achieve a vector like the one below without using loops?
> 
> [0 0 1 1 2 2 3 3 4 4 ... n n]

There is another way to achieve that. Do this like the following:
>> n=7; u(1:2:2*n+1)=0:n;
>>  u(2:2:2*n+2)=0:n;

The array u seems to be what you want.
0
ye_gayev (18)
6/14/2013 7:50:08 AM
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