[Eeglablist] Basic FFT Question

[Makoto Miyakoshi]

Dear Kyle,

It is indeed weird combining the facts that

> perform an FFT on some continuous data.

and

> “newtimef (line 676) error: Value of winsize must be smaller than epoch
frames., (Error occurred in function newtimef() at line 676).

How long is your continuous data? I guess it is longer than 256 points.

Another question for me is that if you want to perform FFT to compute
spectra, why do you choose wavelet transform rather than FFT i.e.,
spectopo()?

Makoto



On Thu, Aug 4, 2016 at 8:00 AM, Kyle R Mitchell <kmitc33 at lsu.edu> wrote:

> Hi all,
>
> I am very new to eeglab and am trying to perform an FFT on some continuous
> data. I have completed the tutorial but am running into trouble. When I
> attempt to perform FFT in pop_newtimef, I receive an error message
> “newtimef (line 676) error: Value of winsize must be smaller than epoch
> frames., (Error occurred in function newtimef() at line 676).
>
> I don’t know how to change the winsize to the appropriate size, or more
> basically, I don’t know what size this would be. My frame/epoch is 256.
>
> I apologize in advance if this question is redundant or too basic, as I am
> quite the novice with Matlab and eeglab. Any advice is greatly appreciated!
>
> Best,
>
> Kyle
>
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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