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Forum: Main CFD Forum

October 2, 2020, 07:32

Replies: 10

Reagrding autocorrelation

Views: 1,184

Posted By flotus1

So mystery solved I guess? Your matlab call with...

So mystery solved I guess? Your matlab call with default settings removes the mean values before calculating autocorrelations. That's why you get the same result with the original series, and the...

Forum: Main CFD Forum

October 2, 2020, 06:01

Replies: 10

Reagrding autocorrelation

Views: 1,184

Posted By flotus1

Both... which ones are you referring to exactly? ...

Both... which ones are you referring to exactly?
If you plugged both your original series and the series with zero mean into your matlab call, then we have confirmation that whatever you used in...

Forum: Main CFD Forum

October 2, 2020, 05:02

Replies: 10

Reagrding autocorrelation

Views: 1,184

Posted By flotus1

Not like that. You are dividing by the sum of...

Not like that. You are dividing by the sum of squares. Removing the mean in this context: calculate the mean value of your signal, subtract that from each value of your signal, then go on to...

Forum: Main CFD Forum

October 1, 2020, 15:29

Replies: 10

Reagrding autocorrelation

Views: 1,184

Posted By flotus1

Not sure which matlab function you used here. Or...

Not sure which matlab function you used here. Or what the default behavior of matlab is with that function.
But there is some degree of ambiguity when it comes to evaluating autocorrelation. Just...

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