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If your sampling rate is 30K, then your time axis should be something like (1:size(data.trial{1},1))./data.fsample; rather than 1:some-number
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<div class="">On 12 Aug 2016, at 18:09, Bahareh Elahian (belahian) <<a href="mailto:belahian@memphis.edu" class="">belahian@memphis.edu</a>> wrote:</div>
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<div class="">Thanks for suggestions.</div>
<div class="">The data.fsample is 30K. </div>
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<div class="">I want to see HFOs in time- frequency plot. <br class="">
Wavelet is one solution of that. </div>
<div class="">The error which I am getting is coming from padding and I do not know where should I fix it. </div>
<div class="">What should I do if I do not want any padding? </div>
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Bahar</div>
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On Aug 12, 2016, at 11:04 AM, Schoffelen, J.M. (Jan Mathijs) <<a href="mailto:jan.schoffelen@donders.ru.nl" class="">jan.schoffelen@donders.ru.nl</a>> wrote:<br class="">
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<div class="">It is correct as far as the data.fsample is consistent with this (which I suspect it isn’t).
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<div class="">If you are interested in HFO, why not bandpassfilter your data and do a Hilbert transform?</div>
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<div class="">Best,</div>
<div class="">Jan-Mathijs</div>
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<div class="">On 12 Aug 2016, at 17:15, Bahareh Elahian (belahian) <<a href="mailto:belahian@memphis.edu" class="">belahian@memphis.edu</a>> wrote:</div>
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<div style="margin-top: 0px; margin-bottom: 0px;" class="">Thanks for the answer,</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">They are the same actually my <span class="">cfg.toi is my <span class="">data.time.</span></span></div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">I specified them the same as each other . was it right?</div>
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<font face="Calibri, sans-serif" style="font-size: 11pt;" class=""><b class="">From:</b><span class="Apple-converted-space"> </span><a href="mailto:fieldtrip-bounces@science.ru.nl" class="">fieldtrip-bounces@science.ru.nl</a> <<a href="mailto:fieldtrip-bounces@science.ru.nl" class="">fieldtrip-bounces@science.ru.nl</a>>
on behalf of Schoffelen, J.M. (Jan Mathijs) <<a href="mailto:jan.schoffelen@donders.ru.nl" class="">jan.schoffelen@donders.ru.nl</a>><br class="">
<b class="">Sent:</b><span class="Apple-converted-space"> </span>Friday, August 12, 2016 10:08:20 AM<br class="">
<b class="">To:</b><span class="Apple-converted-space"> </span>FieldTrip discussion list<br class="">
<b class="">Subject:</b><span class="Apple-converted-space"> </span>Re: [FieldTrip] Wavelet- Time frequency analysis</font>
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<div class="">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.</div>
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<div class="">JM</div>
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<div class="">On 12 Aug 2016, at 16:51, Bahareh Elahian (belahian) <<a href="mailto:belahian@memphis.edu" class="">belahian@memphis.edu</a>> wrote:</div>
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<div class="">Hi All,</div>
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<div class="">I am trying to apply wavelet on my signal to see HFOs. </div>
<div class="">According to <a href="http://www.fieldtriptoolbox.org/tutorial/timefrequencyanalysis" class="OWAAutoLink" id="LPlnk121702">http://www.fieldtriptoolbox.org/tutorial/timefrequencyanalysis</a> </div>
<div class="">I wrote the following lines but I will get an error that: "<span class="">the padding that you specified is shorter than the data</span>".</div>
<div class="">As far as I understood <span class="" style="font-family: Calibri, Arial, Helvetica, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', NotoColorEmoji, 'Segoe UI Symbol', 'Android Emoji', EmojiSymbols; font-size: 16px;">'maxperlen' is the default.</span></div>
<div class="">Any other idea for padding or solving this problem?</div>
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<a href="http://www.fieldtriptoolbox.org/tutorial/timefrequencyanalysis" class="" style="display: table-cell; text-align: center;"><img width="150" height="150" class="" src="https://www.bing.com/th?id=OVP.V249f2fff057aa7a9c87ce8b67ec6c972&pid=Api" style="display: inline-block; max-width: 250px; max-height: 250px; height: 150px; width: 150px; border-width: 0px; vertical-align: bottom;"></a></div>
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<div class=""><a class="ms-Icon--x ms-icon-font-size-14" style="font-family: wf_segoe-ui_normal, 'Segoe UI', 'Segoe WP', Tahoma, Arial, sans-serif; font-weight: normal; position: relative; cursor: pointer; padding: 8px; float: right; color: rgb(102, 102, 102); -webkit-user-select: none; margin-left: 10px; background-color: rgb(239, 246, 252);"></a></div>
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<a href="http://www.fieldtriptoolbox.org/tutorial/timefrequencyanalysis" class="" style="text-decoration: none;">tutorial:timefrequencyanalysis – FieldTrip</a></div>
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<a href="http://www.fieldtriptoolbox.org/" class="">www.fieldtriptoolbox.org</a></div>
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<div class="">cfg= [];</div>
<div class="">cfg.pad = 'maxperlen';</div>
<div class="">cfg.method = 'wavelet';</div>
<div class="">cfg.output = 'pow';</div>
<div class="">cfg.channel = 'chan 4';</div>
<div class="">cfg.toi = 1:size(eeg.eeg_data,2);</div>
<div class="">cfg.foilim = [80 500];</div>
<div class="">[freq] = ft_freqanalysis(cfg, data1);</div>
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<div class="" style="margin-top: 0px; margin-bottom: 0px;">data1 is my data which I get by applying ft_preprocessing.</div>
<div class="" style="margin-top: 0px; margin-bottom: 0px;">_________________________________________________</div>
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<i class=""><b class="">Bahar</b></i></div>
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