How can I repeat each element of a vector different times and store them in a new vector

Dear all,

I am a Matlab novice. I am sorry that my question may be silly.

Does anyone know that how I can repeat each element of a vector different times and then store them in a new vector?

Thank you in advance for the answers

Cheers!

[mahmoud osama]

vector=[1 2 3]
vector = repele(vector,3)

this will repeat every element 3 times

output:

vector=[1 1 1 2 2 2 3 3 3]

Answer 1

[Wayne King]

You can get this from the file exchange.

http://www.mathworks.com/matlabcentral/fileexchange/6436-rude-a-pedestrian-run-length-decoder-encoder/content/rude.m

[Oleg Komarov]

A Milestone.

[Yufan Miao]

Thank you very much for this quick reply. It really helps!

Answer 2

[Andrei Bobrov]

r = [1 3 3 4 0 5];
x = 1:6;

t = r > 0;
a = cumsum(r(t));
b = zeros(1,a(end));
b(a - r(t) + 1) = 1;
x1 = x(t);
out = x1(cumsum(b));

[Andrei Bobrov]

corrected

Answer 3

[Jos (10584)]

Wayne pointed you to a run-length decoder/encoder.

Things become more simple if every element is to be repeated the same number of times:

% repeat all elements of A N times
A = [1 2 3]
N = 3 ; 
B1 = reshape(repmat(A(:).',N,1),1,[])
% or
nA = numel(A) ;
B2 = A(ceil((1:nA*N)/nA))