Generate random numbers in the second decimal point

Question

Mahith Madhana Kumar 2021-1-7

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https://ww2.mathworks.cn/matlabcentral/answers/711468-generate-random-numbers-in-the-second-decimal-point

评论： Mahith Madhana Kumar 2021-1-7

采纳的回答： David Hill

Hi all,

I have an array of numbers (generated using the colon operator):

x=1.198:0.1:2.198

This gives me:

x = 1.198 1.298 1.398 1.498 1.598 1.698 1.798 1.898 1.998 2.098 2.198

I would however like to have a random number between 0 and 5 (including 0 and 5) in the place of 9 which is repeating in the second decimal place for all the above numbers.

Is there any way to do it?

Thanks

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Answer 1

David Hill 2021-1-7

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https://ww2.mathworks.cn/matlabcentral/answers/711468-generate-random-numbers-in-the-second-decimal-point#answer_593323

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x=1.198:0.1:2.198;
x=x-(randi(6,size(x))+3)/100;

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Mahith Madhana Kumar 2021-1-7

Thank you both for the answers.

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Answer 2

John D'Errico 2021-1-7

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https://ww2.mathworks.cn/matlabcentral/answers/711468-generate-random-numbers-in-the-second-decimal-point#answer_593318

在 MATLAB Online 中打开

Something like this is about the noise you want to see in that digit. If it is too large, then multiply by a little smaller number at the end.

x=1.198:0.1:2.198;
x = x + (rand(size(x)) - 0.5)*0.01
x = 1×11
    1.1933    1.2968    1.4000    1.5026    1.5942    1.6965    1.7949    1.8946    2.0029    2.1001    2.1972
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