Randomly assign elements of one vector into different vectors?

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pauldjn
pauldjn el 16 de Ag. de 2018
Comentada: pauldjn el 18 de Ag. de 2018
Hello I have the next vector:
v= [1 2 2 3 1 3 2 1 3 2 1 3 2 1 3 1 2 3 1 3]
And I need to assign randomly 4 elements of this vector in v1 other 3 elements in v2 other 5 elements in v3, 5 in v4 and 3 in v5 but without replacement, so each time these elements are assign to the first vector can not be assing to second and so on.
Is possible to do this with the randsample command?
  2 comentarios
Image Analyst
Image Analyst el 16 de Ag. de 2018
Editada: Image Analyst el 16 de Ag. de 2018
When you say "in v1" do you really mean assign to v1? In other words, get the specified number of elements from v, and replace some elements in an existing v1 with the values from v? What values do v1, v2, ... v5 have before replacing the values, or do they not exist at all yet?
pauldjn
pauldjn el 16 de Ag. de 2018
No sorry, I mean in vector 1 so four elements of the v vector assign them in vector 1

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Respuesta aceptada

jonas
jonas el 16 de Ag. de 2018
Editada: jonas el 16 de Ag. de 2018
Just shuffle your vector and then split it
v=v(randperm(length(v)))
V = mat2cell(v,1,[4 3 5 5 3])
  2 comentarios
Stephen23
Stephen23 el 17 de Ag. de 2018
+1 simple and effective.
I would recommend using a different name for the output: having two variables that differ only by case is just asking for bugs!
pauldjn
pauldjn el 18 de Ag. de 2018
This worked perfectly thanks!

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