Add gaussian distributed noise with mean and variance to matrix
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Hello,
I've seen that to add gaussian distributed noise to a matrix A with mean 0 and var = 5, this is the code
A_wnoise = A + 5*randn(size(A))
Now, how do you add noise with mean 5 and var = 5 to the matrix A? Thanks.
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採用された回答
Image Analyst
2015 年 11 月 5 日
A_wnoise = A + 5*randn(size(A)) + 5;
4 件のコメント
Deryk Smith
2020 年 8 月 13 日
What if your variance is supposed to be (0:0.1:10)? the code does not work then.
Image Analyst
2020 年 8 月 14 日
Variance can't be an array. However you can put one variance into randn() and put it into a loop over all variances to get a family of arrays.
その他の回答 (1 件)
Muhammad Yasir
2021 年 7 月 12 日
How can I generate a noise sequence w_t, which is i.i.d. Gaussian of mean zero with variance 2I3 (2xI3 ,where I3 is identity matrix of dimension 3x3) and the initial condition is x_init = [10 10 −10]'
6 件のコメント
Muhammad Yasir
2021 年 7 月 14 日
Sorry, I could post it immediately. I have posted this question as per your advice. Here is the link to my Query:
https://uk.mathworks.com/matlabcentral/answers/878528-how-to-generate-iid-gaussian-noise-vector
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