[FieldTrip] fieldtrip Digest, Vol 123, Issue 1
Yankı Tandırcıoğlu
yankitandircioglu at gmail.com
Mon Feb 1 12:40:26 CET 2021
Sorry, I just saw your other question.
I am a beginner, so I don't know what to expect in terms of values of
sample & ndatsample relating to your question. This is the struct of the
data:
temp =
struct with fields:
hdr: [1×1 struct]
label: {306×1 cell}
trial: {[306×227572 double]}
time: {[1×227572 double]}
fsample: 2000
grad: [1×1 struct]
cfg: []
Thank you again.
Best regards,
Yankı Tandırcıoğlu
Yankı Tandırcıoğlu <yankitandircioglu at gmail.com>, 1 Şub 2021 Pzt, 14:35
tarihinde şunu yazdı:
> Dear Stephen Whitmarsh,
>
> Thank you for your kind and rapid response.
>
> I tried to run your advice, however the problem remains the same. :(
>
> May there any other possible solutions?
>
> Thank you.
>
> Yankı Tandırcıoğlu
>
>
> <fieldtrip-request at science.ru.nl> adresine sahip kullanıcı 1 Şub 2021
> Pzt, 14:15 tarihinde şunu yazdı:
>
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>> Today's Topics:
>>
>> 1. Padding Error (Yankı Tandırcıoğlu)
>> 2. Re: Padding Error (Stephen Whitmarsh)
>>
>>
>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Mon, 1 Feb 2021 13:21:59 +0300
>> From: Yankı Tandırcıoğlu <yankitandircioglu at gmail.com>
>> To: fieldtrip at science.ru.nl
>> Subject: [FieldTrip] Padding Error
>> Message-ID:
>> <
>> CAExVZ1hKdGZH7zjj-xHjC545EdxK7JRAm0nWf9zbMzpXTPn_xA at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Dear community,
>>
>> My name is Yankı Tandırcıoğlu and I am a student at Middle East Technical
>> University. Currently I am analyzing MEG dataset.
>>
>> I tried using ft_freqanalysis to obtain TFR. However, when I call
>> ft_freqanalysis, I receive the following error message:
>>
>> Error using ft_specest_mtmconvol (line 103)
>> the padding that you specified is shorter than the data
>>
>> The cfg and data I use are as follows:
>>
>> cfg = [];
>> cfg.channel = {'megplanar'};
>> cfg.lpfilter = 'yes'
>> cfg.lpfreq = 150
>> cfg.continuous = 'yes'
>> RestCondition_1 = ft_preprocessing(cfg, temp);
>>
>>
>> cfg = [];
>>
>> cfg.output = 'pow';
>>
>> cfg.channel = 'megplanar';
>>
>> cfg.method = 'mtmconvol';
>>
>> cfg.taper = 'hanning';
>>
>> cfg.foi = 2:1:40;
>>
>> cfg.toi = [0:0.05:2];
>>
>> cfg.trials = 'all';
>>
>> cfg.t_ftimwin = ones(length(cfg.foi),1).*0.5;
>>
>> cfg.keeptrials= 'yes'; %% we keep the single trials
>>
>> freq_Rest1 = ft_freqanalysis(cfg,RestCondition_1);
>>
>> Can someone tell me if there is something wrong with the cfg settings I
>> use
>> or if I am doing something wrong at any other place? T Any help would be
>> appreciated.
>>
>> Best,
>>
>> Yankı Tandırcıoğlu
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>> ------------------------------
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>> Message: 2
>> Date: Mon, 1 Feb 2021 11:45:49 +0100
>> From: Stephen Whitmarsh <stephen.whitmarsh at gmail.com>
>> To: FieldTrip discussion list <fieldtrip at science.ru.nl>
>> Subject: Re: [FieldTrip] Padding Error
>> Message-ID:
>> <CAFrxm=
>> w2Ws7c9-Ys7yHOhHL56Kkp_ovRHLCBhTyM8fTGXCQQvw at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>> Hi Yanki,
>>
>> I suspect something is off with your sampling frequency / triallength;
>>
>> Try debugging:
>>
>> type: dbstop if error
>>
>> then run again, and see what is happening on line 102-103;
>>
>> if round(pad * fsample) < ndatsample
>> ft_error('the padding that you specified is shorter than the data');
>> end
>>
>> Are the values of sample & ndatsample what you would expect?
>>
>> Hope this helps,
>> Stephen
>>
>>
>>
>>
>> Op ma 1 feb. 2021 om 11:29 schreef Yankı Tandırcıoğlu <
>> yankitandircioglu at gmail.com>:
>>
>> > Dear community,
>> >
>> > My name is Yankı Tandırcıoğlu and I am a student at Middle East
>> Technical
>> > University. Currently I am analyzing MEG dataset.
>> >
>> > I tried using ft_freqanalysis to obtain TFR. However, when I call
>> > ft_freqanalysis, I receive the following error message:
>> >
>> > Error using ft_specest_mtmconvol (line 103)
>> > the padding that you specified is shorter than the data
>> >
>> > The cfg and data I use are as follows:
>> >
>> > cfg = [];
>> > cfg.channel = {'megplanar'};
>> > cfg.lpfilter = 'yes'
>> > cfg.lpfreq = 150
>> > cfg.continuous = 'yes'
>> > RestCondition_1 = ft_preprocessing(cfg, temp);
>> >
>> >
>> > cfg = [];
>> >
>> > cfg.output = 'pow';
>> >
>> > cfg.channel = 'megplanar';
>> >
>> > cfg.method = 'mtmconvol';
>> >
>> > cfg.taper = 'hanning';
>> >
>> > cfg.foi = 2:1:40;
>> >
>> > cfg.toi = [0:0.05:2];
>> >
>> > cfg.trials = 'all';
>> >
>> > cfg.t_ftimwin = ones(length(cfg.foi),1).*0.5;
>> >
>> > cfg.keeptrials= 'yes'; %% we keep the single trials
>> >
>> > freq_Rest1 = ft_freqanalysis(cfg,RestCondition_1);
>> >
>> > Can someone tell me if there is something wrong with the cfg settings I
>> > use or if I am doing something wrong at any other place? T Any help
>> would
>> > be appreciated.
>> >
>> > Best,
>> >
>> > Yankı Tandırcıoğlu
>> >
>> > _______________________________________________
>> > fieldtrip mailing list
>> > https://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>> > https://doi.org/10.1371/journal.pcbi.1002202
>> >
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>> End of fieldtrip Digest, Vol 123, Issue 1
>> *****************************************
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>
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