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10% random noise to an array of values

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Dylan Smith
Dylan Smith on 2 Apr 2018
How do I add 10 % random noise to freq = 1:40e3

Answers (1)

William Smith
William Smith on 3 Apr 2018
Not totally clear what you want, but let's assume
  • you want each element in Frequency (40k elements) to be changed to somewhere between 90% and 110% of it's current value.
  • you want a uniform distribution, not say normally distributed noise.
Then:
multiplier = 0.9 + rand(size(freq)) * 0.2;
answer = freq .* multiplier;

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