Mulitpling a scalar to specfic numbers in a vector

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jason
jason 2022-9-7
评论： Matt J 2022-9-8
I need to multiply random numbers in a vector by a different scalar depending on what numbers are in the vector. For example, [1 3 5 10 15 17 20 25 30]; I would have to multiply the 1,3 and 5 by 2, and the 10,15,17 by 5, but the 20,25, and 30 would be multiplied by 10. So the vector would look like [2 6 10 50 75 85 200 250 300].

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Matt J
Matt J 2022-9-7
编辑：Matt J 2022-9-7
Ran in:
One way:
[1 3 5 10 15 17 20 25 30].*repelem([2,5,10],3)
ans = 1×9
2 6 10 50 75 85 200 250 300
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Torsten
Torsten 2022-9-7
编辑：Torsten 2022-9-7
Ran in:
Then explicitly form the vector of scalars associated with the elements of the random vector.
[1 3 5 10 15 17 20 25 30].*[2 2 2 5 5 5 10 10 10]
ans = 1×9
2 6 10 50 75 85 200 250 300

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