How to generate a random number between 0 and 180

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Victoria Helm 2021-7-8

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https://ww2.mathworks.cn/matlabcentral/answers/874978-how-to-generate-a-random-number-between-0-and-180

编辑： DGM 2021-7-12

Will the following code work to generate a random integer between 0 and 180?

length = 180;
random_location = randi([0 length], 1);

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Answer 1

Image Analyst 2021-7-12

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Don't use length as a variable name because it's the name of a built-in function. Try it this way:

% Generate a single integer, randomly chosen from the range 0 to 180, inclusive.
maxValue = 180; % Not using length because it's a built-in function.
randomInteger = randi([0, maxValue], 1, 1) % Generate the column vector.

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Answer 2

DGM 2021-7-8

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https://ww2.mathworks.cn/matlabcentral/answers/874978-how-to-generate-a-random-number-between-0-and-180#answer_743003

编辑：DGM 2021-7-8

在 MATLAB Online 中打开

Yes.

length = 180;

random_location = randi([0 length],1E6,1);

[min(random_location) max(random_location)]

ans = 1×2

0 180

histogram(random_location,'binmethod','integers')

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Victoria Helm 2021-7-12

What is the purpose of including the 1E6?

DGM 2021-7-12

编辑：DGM 2021-7-12

That's the height of the array; i'm specifying that I want a 1000000x1 column vector from randi(). The reason I chose to get a large vector instead of 1 number is so that I had enough samples to demonstrate (via histogram) that the results are uniformly distributed between the specified limits. You can specify whatever output size you need.

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