picking a random number in a range

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Esra Demirbilek 2022-5-18

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https://ww2.mathworks.cn/matlabcentral/answers/1722355-picking-a-random-number-in-a-range

评论： Esra Demirbilek 2022-5-18

hello i have a problem

I can explain this problem as follows;

I want to randomly pick a number between 1 and 69 points. I want the selected number to change every time I run it.

this is my cod; cpoint=unidrnd(69-1);

but this code gives error. How can I do it

Thanks advance.

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Answer 1

Steven Lord 2022-5-18

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Do you want a random integer value or just any old number between 1 and 69?

The next time you draw a random number, are you going to want to exclude the previously drawn number (like if you're simulating a lottery drawing, where once a numbered ball is drawn it cannot be drawn again)?

Take a look at the randi (random integers with replacement), randperm (random integers without replacement), or rand (random numbers) functions.

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Esra Demirbilek 2022-5-18

I want to pick random integers between 1 and 69. I can re-select the number I chose.

I am working on genetic algorithm.

I will cross between two individuals. I need the cutting point to be able to crisscross. I want to randomly select an integer between 69-1 for the cut-off point. I want the number I selected to change every time I run the code.

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