[Eeglablist] time-freuency transform doesn't show all the time interval

shahar shahars10 at gmail.com
Sat Mar 7 04:25:45 PST 2015

Hello Tarik,
I've followed your link, and the answer for this question is that half of
the window should be cut off at the begining and at the end of the
picture. Actually, it's possible to control the window size by the input
'winsize' when using the command newtimef. However, in fact, the length of
the cut-off is different than half of the window. My question: is there an
accurate way to control the length of the cut-off ? I can use different
window sizes and take the one which looks best, but I don't want to use
this method.
Thank you,


On Sat, Mar 7, 2015 at 7:23 AM, Tarik S Bel-Bahar <tarikbelbahar at gmail.com>

> Hello Shahar, I hope this helps, cheers!
> This is likely due to a property of how time-frequency is computed.
> You can read more about this in Mike Cohen's book on time-frequency.
> Searching through previous eeglablist posts can help you.
> I tried typing the following into google
> "eeglablist time-frequency windows cut off"
> The first resulting link seems directly related to your question:
> http://sccn.ucsd.edu/pipermail/eeglablist/2014/008968.html
> On Thu, Mar 5, 2015 at 4:39 AM, shahar <shahars10 at gmail.com> wrote:
>> Hello,
>> I'm trying to display a time-freuency transform. The epoch's time
>> interval should be [0 14.5] sec, but the begining and the end of the
>> epoch's time are truncated. The same problem occures when I use the
>> time-frequency transforms in the EEGLAB, and also when I use the command
>> newtimef. Anyone has an idea how to fix this problem ?
>> You can view the resulted chart in the following link:
>> http://dc673.4shared.com/download/RVO09duUba/spectrogram.jpg?lgfp=3000
>> Thank you,
>> Shahar
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