creating a variable to use for grouping data

I want to create a variable (a column vector) with a specific length (8000), containing values 1 to 10 randomly assigned and with a specific average repetition of each number (say 800). How to do this?

 Respuesta aceptada

Walter Roberson
Walter Roberson el 20 de Abr. de 2012
If the number of repetitions is to be exact:
t = repmat(1:10.', 800, 1);
t(randperm(length(t)))
If the repetitions need not be exact:
1 + floor(10 * rand(8000,1))

2 comentarios

Rabeya
Rabeya el 20 de Abr. de 2012
Very impressive!
Walter Roberson
Walter Roberson el 20 de Abr. de 2012
Opps, I had an extra layer of repmat() on the first solution! I have edited.

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