Expanding Array as following;

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Hi, I tried hard solution for this, but I think I can't... Would you please help?

I have logical vector here;

A=[1 0 0 1];

I want to expand this array like this, this is like expanding vector A by 3 times.

B=[1 1 1 0 0 0 0 0 0 1 1 1];

I tried function 'upsample', but it doesn't work as I intended like above.

Also made this logical values into 'double' and used interp1 function, also did not work.

Also searched in the Matlab Community, think that there is 100% matching question wharrich what I am seeking of...

Would you please help?

Thanks!

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Answer 1

Davide Masiello 2022-9-22

编辑：Davide Masiello 2022-9-22

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Try this

A = [1 0 0 1];
B = repelem(A,3)
B = 1×12
     1     1     1     0     0     0     0     0     0     1     1     1

For more info see the documentation for repelem.

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도연 원 2022-9-24

Actually I also need the case of repelem(A,5) or 10.

For the matter that I am having now, repelem makes a little bit easier.

Thanks Davide, and thanks for the Cris' too.

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Answer 2

Cris LaPierre 2022-9-22

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What about this?

A=[1 0 0 1];
B = [A;A;A];
B = B(:)'
B = 1×12
     1     1     1     0     0     0     0     0     0     1     1     1

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Expanding Array as following;

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