Generate 2 random numbers x and y for 10 times in a loop. x can take any value in the range of (0,1) but y is conditioned on x such that y assumes any number between (0,1-x)

Question

Payel 2023-6-21

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https://ww2.mathworks.cn/matlabcentral/answers/1985984-generate-2-random-numbers-x-and-y-for-10-times-in-a-loop-x-can-take-any-value-in-the-range-of-0

编辑： RANGA BHARATH 2023-6-21

采纳的回答： Samay Sagar

for i=1:10

random_x=rand

random_y=

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Answer 1

Samay Sagar 2023-6-21

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You can use the following to generate random numbers between 0 and 1-x

y=rand()*(1-x)
%To generate random no.s between a and b : y = a + rand()*(b-a)

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Answer 2

RANGA BHARATH 2023-6-21

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编辑：RANGA BHARATH 2023-6-21

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Hi @Payel. Here is the solution and code for your question.

Question: How to use the rand() function when the range parameters are conditioned on any other variable?

Solution:

You can simply define the independent variable first and then use it in defining the dependent variable.

To be more specific, once you define the x, you can use y = rand()*(1 - x).

Code:

x = zeros(1,10);
y = zeros(1,10);
for i=1:10
    temp = rand(1);
    x(1,i) = temp;
    y(1,i) = rand(1)*(1-temp);
end
x
x = 1×10
    0.6590    0.7347    0.9144    0.6091    0.3819    0.4112    0.1823    0.8654    0.5492    0.6796
y
y = 1×10
    0.3405    0.1315    0.0718    0.1244    0.3935    0.3454    0.7109    0.1107    0.1352    0.1733