I need some non-repeated random values of variable A
For example:
Variable A=[1 2 3 4 5]
Answer should be any three random values of A.
Answer =[1 5 2] or [1 3 4] or [3 2 4] etc. but not [1 1 5] or [5 3 5] [1 1 1]etc.
You can do this using the datasample function:
http://www.mathworks.it/it/help/stats/datasample.html
For example, to extract three values from the vector A:
y = datasample(A, 3, 'Replace', false)
This works also if A is a matrix, an N-dimensional array or a dataset array.
If for any reason you have not access to this function, you can use randperm:
y = A(randperm(length(A), 3))
In this case, if A is a matrix and not a vector, you have to work on a vectorized version of it: A = A(:).
Hope this helps.
Dear Simone Scardapane, Mattia Saccoccio & Deepak Bharti
Yes this is a perfect solution.
I have solved by using this
n2=[4 6 9];
f2=[0 1 1 0 1]
n11=([n2(find(f2==0))]);
Thank You very much
Does anyone know if randsample can be nested safely with parfor? I seem to recal a problem with random number generation between parfor processes.
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