[FieldTrip] Non linear frequency steps in TFR

[kousik sarathy]

Hey Sandhy,

Try,
cfg.foi = [7:30, 30:5:60, 60:10:120];

Alpha and beta in steps of 1 Hz, low gamma in steps of 5 Hz and so on.

Is this what you need?


--
Regards,
Kousik Sarathy, S



On Fri, Aug 22, 2014 at 11:01 AM, Prasandhya Astagiri Yusuf <
prasandhya.a.yusuf at gmail.com> wrote:

> Hi All,
>
> I want to have a TFR plot that has the same portion for :
> - alpha (7-15 Hz)
> - beta (15-30 Hz)
> - low gamma (30-60 Hz)
> - high gamma (60-120 Hz)
>
> Since those bands have exponential frequency steps, I could only see very
> small part of alpha and (too) many  high gamma band. Is there a way to make
> the cfg.foi in fieldtrip to have non linear steps? I tried to insert a
> exponential function: cfg.foi = 0.5*exp(0.6931*(3.8:0.02:7.9));
> But fieldtrip seems only detect first and last number and make linear
> steps out of it.
>
> Thank you in advance for any help and share!
>
> Sandhy
>
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