is there a function in matlab that creates a binary repetition coder ?

for example when i enter a sequence 0010110 ;when n=3

the result will be 000000111000111111000

Answer 1

[Azzi Abdelmalek]

s='0010110'
out=repmat(s,3,1)
out=out(:)'

%or

s=[0 0 1 0 1 1 0];
out=reshape(repmat(s,3,1),1,[])

[mary]

thank you indeed .. but can you tell me what 1 refers to in (s,3,1) and then what is the other one and the []??

[Azzi Abdelmalek]

out=repmat(s,3,1) % will repeat s 3 times verticaly and once hrizontaly reshape(M,1,[]) reshape a matrix M to one line, [ ] means that matlab will determine the lentgh

[mary]

okey Mr.Azzi thank you so much .

[mary]

but when i want to decode what function should i use?

[Azzi Abdelmalek]

a=reshape(out,3,[]);
b=a(1,:)

[José-Luis]

 b=a(1:3:numel(a));

[mary]

okey it worked .. thanx alot :)

Answer 2

[Nasser M. Abbasi]

You did not say what is the class of 0010110, so I assume cell array.

r = {'0' '0' '1' '0' '1' '1' '0'};
n = 3;
reshape(repmat(r,n,1),1,n*numel(r))'

ans = 

      '0'
      '0'
      '0'
      '0'
      '0'
      '0'
      '1'
      '1'
      '1'
      '0'
      '0'
      '0'
      '1'
      '1'
      '1'
      '1'
      '1'
      '1'
      '0'
      '0'
      '0'

This is a cell. Now you can do with it any conversion you want.

--Nasser

[mary]

it is a 1 by n matrix .. by the way can you help me with generating such an array of zeros and ones?? thanx alot

[mary]

i mean such a matrix of 1 by n dimensions?