how to create random double in specific range?
显示 更早的评论
HI, randi function Can only generate integers in specific range.
num = randi([1,3],[1,10],'double');
how to create double numbers in range such as [0.2,1.2]?
采纳的回答
For generating double numbers you can use:
r = rand( 1, 3 ,'double')
and to have them in a specific range you can use the following source: https://www.mathworks.com/help/matlab/math/floating-point-numbers-within-specific-range.html
which is:
a = 50;
b = 100;
r = (b-a).*rand(1000,1) + a;
thus, finally:
numElements = 10;
a = 0.2;
b = 1.2;
r= (b-a).*rand(1, numElements, 'double') + a; % [SL: added the missing "+a" term]
The result:
r
更多回答（1 个）
Carolina Escobar
2023-4-1
0 个投票
e = rand(0.1,1)
1 个评论
This will throw an error.
e = rand(0.1, 1)
As the error message indicates, the size inputs to rand must contain integer values.
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