[Eeglablist] newtimef freqs output

[Makoto Miyakoshi]

Dear Katharina,

Sorry for slow response.

> The values range from 1.6608914e+04 to 3.0225791e+05.

This means your frequency range is between 1.6 MHz to 30.2 MHz, which
is like an old generation CPU clock speed. Something is seriously
wrong. However, I don't know what causes this from your code.

By the way, if you want something close to 4,5,6,... 50, you should
use 'nfreq', 47 instead of 'padratio', 4. Could you try it to see what
happens?

Makoto

2012/7/22 Katharina Limbach <klim366 at aucklanduni.ac.nz>:
> Dear all,
>
> I have a question regarding the output of the newtimef function.
> I am using the following command (input data: 1 participant, 1 condition,
> electrode # 67. My sampling rate is 250 Hz and the epochs go from -400 to
> 996 ms (350 frames)):
>
> [ersp,times,freqs] = newtimef(EEG.data (67,:,:), 350, [-400 996], 250, [1
> 0.5],'baseline',[NaN], 'freqs', [4 50], 'freqscale', 'log', 'padratio', 4,
> 'plotphase', 'off', 'plotitc', 'off');
>
> The resulting plot is showing frequencies from 4 to 50 Hz (which is what I
> was looking for) but I do not understand the output I get for 'freqs':
> The values range from 1.6608914e+04 to 3.0225791e+05.
> Shouldn't they simply be in Hz and go from 4 to 50 Hz? Do I have to convert
> them to get the correct values or is there something else that I am doing
> wrong?
>
> Also my 'times' output is not a vector of output times in ms, but a  47 x
> 200 martix with complex numbers.
>
>
> Thanks a lot for your help,
> Katharina
>
> --
> Katharina Limbach
> PhD Candidate
> Department of Psychology
> University of Auckland
> Private Bag 92019
> Auckland
> New Zealand
> tel: + 64 9 3737 599 ext 85969
>
>
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-- 
Makoto Miyakoshi
JSPS Postdoctral Fellow for Research Abroad
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego