[FieldTrip] Wavelet- Time frequency analysis

[Schoffelen, J.M. (Jan Mathijs)]

Note that the units of the time points specified in cfg.toi should coincide with the units in the time axis of the data, i.e. data.time.

JM


On 12 Aug 2016, at 16:51, Bahareh Elahian (belahian) <belahian at memphis.edu<mailto:belahian at memphis.edu>> wrote:


Hi All,

I am trying to apply wavelet on my signal to see HFOs.
According to http://www.fieldtriptoolbox.org/tutorial/timefrequencyanalysis
I wrote the following lines but I will get an error that: "the padding that you specified is shorter than the data".
As far as I understood 'maxperlen' is the default.
Any other idea for padding or solving this problem?
[https://www.bing.com/th?id=OVP.V249f2fff057aa7a9c87ce8b67ec6c972&pid=Api]<http://www.fieldtriptoolbox.org/tutorial/timefrequencyanalysis>

tutorial:timefrequencyanalysis – FieldTrip<http://www.fieldtriptoolbox.org/tutorial/timefrequencyanalysis>
www.fieldtriptoolbox.org<http://www.fieldtriptoolbox.org/>



cfg= [];
cfg.pad = 'maxperlen';
cfg.method = 'wavelet';
cfg.output = 'pow';
cfg.channel = 'chan 4';
cfg.toi = 1:size(eeg.eeg_data,2);
cfg.foilim  = [80 500];
[freq] = ft_freqanalysis(cfg, data1);



data1 is  my data which I get by applying ft_preprocessing.
_________________________________________________
Bahar
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