[FieldTrip] tfa produces zeros

[kousik sarathy]

Dear Marcus,

I tried running the "data_clean" through the same snippet of code (IV). It
works fine for me.

Could post the exact code you used?

--
Regards,
Kousik Sarathy, S


On Wed, Nov 19, 2014 at 9:58 AM, Marcus Heldmann <
marcus.heldmann at neuro.uni-luebeck.de> wrote:

> Dear all,
> I have a dataset with surface and local field potential recordings and I’d
> like to perform a tfa. The data are recorded with a BrainVision Recorder,
> 1KHz sampling frequency, bp 0.05-200Hz. After epoching (-1 to 2 s),
> filtering (bsfilter 49:51, lpfilter 70) and baseline correction I tried to
> perform a tfa using a wavelet analysis described in the tutorial (
> http://fieldtrip.fcdonders.nl/tutorial/timefrequencyanalysis,
> Time-frequency analysis IV). However, the powspctrm-field just contains
> NaNs (which is ok) and zeros (not ok). The data seem to be correct, I am
> able to plot single trials. The strange thing is, that my EEGLAB analysis
> provides some meaningful results. You can fined the preprocessed data for
> one condition under the following link
>
>
> https://drive.google.com/file/d/0B4-NxS-suG8dOXZnVHcxUDFyYXM/view?usp=sharing
>
> Any idea, why this happen’s?
>
> Greetings, Marcus
>
> ---------------------------------------------
>
> Dr. Marcus Heldmann
> Klinik für Neurologie
> UKSH, Campus Lübeck
> Paul-Ehrlich-Strasse 1-3, MGZ
> 23562 Lübeck
> 0451 317 9313 14
>
>
>
>
>
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