Create a random sequence with specified values

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luca 2019-9-16

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/480622-create-a-random-sequence-with-specified-values

编辑： luca 2019-9-16

Given a matrix

A=      [0  15 11 2 4  0  3 1 13;
        14  0 16 0 0  0  0 0 0;
        0   0 0  0 8  0  0 0 0;
        0   0 18 0 0  0  0 0 0;
        0   0 19 0 0  0  0 0 0;
        0   0 0  0 0  0  0 0 0];

I want to create a random sequence in a vector F where

1) the sequence that I need to create must be composed by a repetition of batches. The elements inside the batches are defined by each columns: The 1st batch is made by 14. the 2nd batch is made by 15. the 3rd batch is made by 11 16 18 19 and so on.

The length of the batches should be variable.

2) given a vector S = [1 2 3 4 8 11 13 14 15 16 18 19 20] which collects the elements in A and a vector Y= [ 12 34 45 10 12 35 40 40 23 45 21 24 56], Y tells us how many parts we need inside the sequence. So we need part-1 12 times, part-2 34 times, part-3 45 times, part-4 10 times and so on. in total the sequence will have length equal to sum(Y)=397

May someone help me with this difficult task?

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Guillaume 2019-9-16

Other than S being sort(nonzeros(A))' with a 20 tacked on the end for some reason, I don't see how the second half of the question is related the the first half. In particular, in the 2nd half, it's not clear what parts refer to in "how many parts we need. Are the parts somehow related to the batches of the 1st half.

luca 2019-9-16