Create a random vector only with positive numbers

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Marta
Marta 2022년 9월 2일
댓글: Marta 2022년 9월 2일
Hello, I'm new in matlab and I want to create a vector only with positive numbers.
I usually use the function "randn()" but i can't control the sign of the element.
Thank you! :)

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Matt J
Matt J 2022년 9월 2일
편집: Matt J 2022년 9월 2일
If you don't care what the distribution is, infinite possible recommendations can be made. You can use a classically non-negative distribution, e.g., rand, poissrnd, randi,...
Or, you can improvise and do things like,
x=randn(1,5).^2
x = 1×5
1.2926 0.2196 0.1405 2.3377 0.0006
or
x=abs(randn(1,5))
x = 1×5
0.7789 1.6381 0.6319 0.5479 1.2840
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Marta
Marta 2022년 9월 2일
I didn't know these functions!
Really helpful, thank you so much!

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